Tue, 06 Oct 2015 08:00:00 EDTIn accordance with one aspect of the present invention, an optical coherence tomography instrument comprises an eyepiece for receiving at least one eye of a user is provided; a light source that outputs light that is directed through the eyepiece into the user's eye; an interferometer configured to produce optical interference using light reflected from the user's eye; an optical detector disposed so as to detect said optical interference; and electronics coupled to the detector. The electronics can be configured to perform a risk assessment analysis based on optical coherence tomography measurements obtained using the interferometer. An output device can be electrically coupled to the electronics, and may be configured to output the risk assessment to the user through the output device. The optical coherence tomography instrument can be self-administered, and the eyepiece can be a monocular system or a binocular system.
Tue, 09 Jun 2015 08:00:00 EDTA contact lens having a thin silicon chip integrated therein is provided along with methods for assembling the silicon chip within the contact lens. In an aspect, a method includes creating a plurality of lens contact pads on a lens substrate and creating a plurality of chip contact pads on a chip. The method further involves applying assembly bonding material to the each of the plurality of lens contact pads or chip contact pads, aligning the plurality of lens contact pads with the plurality of chip contact pads, bonding the chip to the lens substrate via the assembly bonding material using flip chip bonding, and forming a contact lens with the lens substrate.
Tue, 26 May 2015 08:00:00 EDTThis disclosure is directed to systems and methods for determining a correction for distortion in eye representations of an ophthalmoscope. A digital model of an optical system including the ophthalmoscope and a model eye may be constructed. The digital model may be transmitted to a ray tracing system. A ray may be passed through the optical system onto a surface of the model eye. A measurement of the ray at the surface of the model eye, with distortion, may be calculated and an angular position of a horizontal scanning element and an angular position of a vertical scanning element can be determined. Using the horizontal scanning angle and vertical scanning angle, a measurement of the ray at the surface of the model eye, without distortion, may be calculated and compared to the measurement with distortion to determine a correction for distortion in eye representations of the ophthalmoscope.
Tue, 26 May 2015 08:00:00 EDTSystems and methods for providing a video game to map macular visual acuity comprising a multiple choice test where the fixation point is ensured by brief simultaneous presentation of both a central and pericentral targets. The game may be implemented on a hardware platform including a video display, a user input device, and a video camera. The camera is used to monitor ambient light level and the distance between the device and the eyes of the test subject. The game serves as a macular acuity perimeter that produces a map of the acuity of an eye that may be compared with normative data. The type of acuity tested is preferably Vernier acuity, but resolution acuity can also be tested. The test results are transmitted to a health care professional by telecommunications means to facilitate the diagnosis or monitoring of age-related macular degeneration or other relevant eye diseases.
Tue, 26 May 2015 08:00:00 EDTExample embodiments of a large dynamic range sequential wavefront sensor for vision correction or assessment procedures are disclosed. An example embodiment includes first and second optically coupled 4F relays and a variable focus lens disposed substantially at the image plane of the first 4F relay and the object plane of the second 4F relay.
Tue, 26 May 2015 08:00:00 EDTMethods and system for determining a physiological parameter of a subject through interrogation of an eye of the subject with an optical signal are described. Interrogation is performed unobtrusively. The gaze direction of the eye of the subject is determined and an interrogation signal source and/or response signal sensor are moved into alignment with the eye using an actuator to facilitate detection of the signal from the eye of the subject.
Tue, 26 May 2015 08:00:00 EDTMethods and systems for determining a physiological parameter of a subject through interrogation of an eye of the subject with an optical signal are described. Interrogation is performed unobtrusively. The physiological parameter is determined from a signal sensed from the eye of a subject when the eye of the subject is properly aligned with regard to an interrogation signal source and/or response signal sensor.
Tue, 26 May 2015 08:00:00 EDTThis image processing apparatus includes: a planar image acquisition unit configured to acquire a planar image showing a polarization state of a subject, a tomographic image acquisition unit configured to acquire a three-dimensional tomographic image including a plurality of two-dimensional tomographic image of the subject, a display control unit configured to display, on the display unit, an index indicating a position of a tomographic image to be displayed on the display unit among a plurality of two-dimensional tomographic images, by superimposing it on a planar image showing the polarization state, and an instruction unit configured to give an instruction to change a position of the index on a planar image showing the polarization state.
Tue, 26 May 2015 08:00:00 EDTAn eye image and video capture system (100) that includes at least one user interface from which a user may select one of a plurality of regions of an eye to image, each of the plurality of regions preferably having at least one correlated preset value for the light control components of the optics assembly and/or at least one correlated preset value for controlling the camera. A method associated with the eye image and video capture system. A slit lamp data detection system in which the slit lamp (200) preferably has a movable component that preferably has a direct relation to desired data. The slit lamp data detection system may be a slit lamp magnification data detection system for detecting magnification data. The slit lamp data detection system may be a slit lamp position data detection system for detecting position data that indicates which eye is being examined.
Tue, 26 May 2015 08:00:00 EDTA corneal endothelial cell photographing apparatus comprises: a main unit including: an illumination optical system for illuminating illumination light from an illumination light source toward a cornea of an examinee's eye from an oblique direction; an imaging optical system for obtaining a corneal endothelial cell image by receiving, through an imaging element, reflection light from the cornea including corneal endothelial cells; and a fixation optical system including a plurality of fixation targets and for guiding a fixation direction of the examinee's eye; a drive unit to relatively move the main unit with respect to the examinee's eye; a serial photographing unit to obtain endothelial images in series at different photographing positions in previously set up-and-down and right-and-left directions; and a monitor to display the obtained endothelial image.
Tue, 26 May 2015 08:00:00 EDTAn optical coherence eye-fundus tomography device has a high resolution and a good operability, as well as be miniaturized and be produced at a low cost. The optical coherence eye-fundus tomography device includes: a light source unit which emits a source light beam; a reference-light unit which reflects a reference light beam; an inspection unit which illuminates an object with an object scanning light beam, reflected the object scanning light beam; and a detection unit which obtains a tomographic image of the object on the basis of the interference light beam produced by interfering the reflected reference light beam with the reflected object light beam. For example, the light source unit emits the outgoing light beam that has a depth of focus of not less than 300 μm, and resolution that is 6 μm×6 μm or higher in a planar direction perpendicular to a traveling direction of the outgoing light beam.
Tue, 26 May 2015 08:00:00 EDTThe present application relates to novel monomers comprising polycarbosiloxane monomers useful in certain specific embodiments in the manufacture of devices. More particularly, the present application relates to certain ethylenically unsaturated free radical polymerizable monomers comprising polycarbosiloxane monomers. Even more particularly, the present application pertains to monomers comprising polycarbosiloxane monomers which further comprise at least two ethylenically unsaturated free radical polymerizable groups.
Tue, 26 May 2015 08:00:00 EDTThe invention is directed to a colored contact lens designed for making a wearer's eyes to appear larger, bolder, and enhanced color while giving the wearer's eyes a very natural appearance. A colored contact lens of the invention comprising a first print of a first color and a second print of a second color, wherein the first print consisting of an annular ring of gradient dot matrix, wherein the second print comprises a limbal ring and an outer starburst pattern, wherein the limbal ring surrounds the outer starburst pattern, wherein the annular ring and the limbal ring have a substantially identical outer diameter and the annular ring has a larger inside diameter than the limbal ring, the first color and the second color are different or the same, wherein the first print and the second print are concentric with the center of contact lens.
Tue, 26 May 2015 08:00:00 EDTA method and system for treating Presbyopia and pre-Presbyopia are provided that do not compromise the wearer's intermediate or distance vision. The system is a lens and a lens series, wherein the power profiles of the lenses are tailored to provide an amount of positive ADD power in the near vision zone that is slightly less than that which is normally required for near vision accommodation, while also providing an amount of negative spherical aberration in the peripheral optical zone. The dynamic ocular factors of the wearer's eye work in conjunction with the positive ADD power provided by the central optical zone and with the effective ADD gained from the negative spherical aberration provided by the peripheral optical zone to induce a minimally discernible amount of blur that is tuned to maximize the wearer's depth of focus.
Tue, 26 May 2015 08:00:00 EDTA contact lens assembly includes a proximal layer formed from a gas-permeable material, a distal layer with an optical element, an air cavity disposed between the proximal layer and the distal layer, wherein oxygen concentration across the air cavity is substantially uniform, and an gas transport region surrounding the air cavity for communicating gas between the air cavity and atmosphere. The contact lens assembly may further include a plurality of fins disposed within the air cavity where the plurality of fins has openings therethrough. One or both of the upper and lower surfaces of the air cavity may have an anti-reflection coating formed thereon.
Tue, 26 May 2015 08:00:00 EDTA system and method for manufacturing an ophthalmic lens is described. In some examples, the system applies a back surface to a lens blank that includes an aspherical curve having two radii of curvature. In some examples, a back surface of a peripheral portion of the lens follows the curvature of a front surface of the lens in order to establish a rounded, non-sharp edge to a lens blank used during the manufacturing process of a prescription eyeglass lens.
Tue, 26 May 2015 08:00:00 EDTA support member for a wearable instrument which is mounted on a user's head part in cooperation with an eyeglass frame includes a head-contact portion that comes in contact with the user's head part, a temple-contact portion that comes in contact with a temple part of the eyeglass frame on a surface opposite of the head-contact portion, an instrument-connection portion for a wearable instrument that is disposed on the side of the temple-contact portion. Here, the temple-contact portion 30 has a first contact surface that comes in contact with a head-side surface of the temple part.
Tue, 26 May 2015 08:00:00 EDTThe present eyewear includes a pair of lenses, a pair of releasable connectors connected to respective inner ends of the lenses, temples pivotally connected to respective outer ends of the lenses and a rigid strap connected between the rear ends of the temples. The strap is further characterized as having parallel legs connected to the rear ends of the temples, transition segments having a first shape extending from the substantially parallel legs to an arc-shaped base which extends along the back of the user's head when worn The transition segments are bendable by a user causing them to change from their first shape to a second shape and to maintain the second shape unless bent further by the user.
Tue, 26 May 2015 08:00:00 EDTThe present invention has a technical object to provide glasses which prevent invasion of pollen, can be continuously worn without any discomfort in wearing, and can effectively block ultraviolet ray. The present invention achieves the technical object by glasses including inwardly projecting visors in rims and end pieces of a frame, and glasses in which lenses, a frame, and inwardly projecting visors formed in the frame are formed of synthetic resin containing an ultraviolet absorbing agent or an ultraviolet scattering agent.
Tue, 19 May 2015 08:00:00 EDTSystems and methods for efficiently obtaining optical coherence tomography (OCT) measurement data with reduced effects of motion are presented. One embodiment involves determining the amount of motion present during the collection of an OCT data set based on images of the eye collected at the same time as the OCT data, and recollecting select portions of the OCT data set when the amount of eye motion is determined to exceed a predetermined threshold. Another embodiment includes enabling or disabling a tracking feature based on the quality of the images available for tracking. Another embodiment includes reducing the effect of motion in the axial direction based on a comparison to a model of the eye constructed from OCT data. The method can also be used to reduce the presence of mirror image artifacts in an OCT image.
Tue, 19 May 2015 08:00:00 EDTSystems and methods for improving the peripheral vision of a subject are disclosed. In one aspect, embodiments of the present disclosure includes a method, which may be embodied on a system, for improving peripheral vision of a subject using a visual marker on a display screen, the method includes, displaying a peripheral target on the display screen, the peripheral target having a visually discernable characteristic and determining whether the subject is able to correctly identify the peripheral target displayed on the display screen using the peripheral vision. The visual marker is intended for viewing using central vision of the subject and the peripheral target is intended for identification using the peripheral vision of the subject.
Tue, 19 May 2015 08:00:00 EDTIn one aspect, there is provided a handheld vision tester comprising a display, cursor control, interface port, and camera. The display delivers a series of images making up vision tests to a user who interacts with the vision tests by using the display and cursor control of the handheld vision tester. The camera verifies the user is taking the vision tests. The results of the vision tests are stored in the handheld communication device. The interface port allows for communication of the stored results of the vision tests with external devices. In another aspect, there is provided a calibration system for the handheld vision tester. The calibration system includes a stand to hold the handheld vision tester and a reflective surface substantially parallel to a display of the handheld vision tester.
Tue, 19 May 2015 08:00:00 EDTLight from an exit pupil of an illumination unit is directed to a beam splitter which directs the light to an objective. The retina is illuminated, if a real image of the exit pupil of the illumination unit and a real image of an entrance pupil of a camera unit are formable in a position ranging from the cornea to the backside of the crystalline lens with the light. The objective forms a real intermediate image of the retina between the objective and the camera unit. The beam splitter directs the light from the retina to the camera unit, while causing the path of the illumination and the path of the imaging to deviate for non-overlapping images of the exit pupil and the entrance pupil in the crystalline lens. A relay lens system forms a real image of the intermediate image on a detecting component with the light reflected from the retina for transforming the image into an electric form to be shown on a screen.
Tue, 19 May 2015 08:00:00 EDTThere is provided an apparatus for recording a depth profile of a biological tissue, in particular a frontal eye section of a human eye, according to the principle of optical coherence tomography, comprising a light source adapted to generate a bundle of light rays, an interferometer arrangement having a beam splitter device adapted to spatially separate the bundle of light rays into a reference beam and a measurement beam directed toward the tissue, a reference beam deflection device adapted to deflect the reference beam, a beam superpositioning device adapted to spatially superimpose the deflected reference beam onto the measurement beam deflected by the tissue into a superpositioned beam, and a detector arrangement for detecting information in the superpositioned beam associated with the difference of the optical path length of the reference beam and the measurement beam.
Tue, 19 May 2015 08:00:00 EDTA method of tracking a position of an eye is provided. The method of tracking a position of an eye includes converting an obtained image into a binary number image, classifying the corner of the eye, maximum and minimum values of a pupil of the eye, and extracting a feature point from the binary number image on which the binarization step is completed, calculating a distance and inclination between the corner and the pupil of the eye using the feature point extracted through the feature point extraction step, and determining a gaze direction of the eye based on the distance and inclination calculated through the distance and inclination calculation step.
Tue, 19 May 2015 08:00:00 EDTA line scan imager is used to determine the motion of a subject. Each line of image data from the line scan imager is compared with a reference image. The location of a matching line in the reference image reveals the displacement of the subject. The current subject displacement can be determined based on each line of image data. The resulting displacement information can be used to correctly place other optical beams on the subject. The method can be applied to tracking the human eye to facilitate measurement, imaging, or treatment with a beam of optical radiation.
Tue, 19 May 2015 08:00:00 EDTA fundus photographing apparatus for photographing a fundus of an examinee's eye includes: a photographing part including a photographing optical system for photographing the fundus; a mechanism for moving the photographing part; a presenting part for presenting a fixation target to the eye; an alignment detecting optical system including a light receiving element to detect an alignment state of the photographing part; and a setting part for setting an alignment completion position in a back and forth direction of the photographing part relative to the eye based on the detected alignment state. The alignment completion position includes a first alignment completion position information to be set when an optical axis of the photographing part is in a predetermined range relative to a corneal vertex of the eye and a second alignment completion position information to be set when the optical axis is apart from the predetermined range.
Tue, 19 May 2015 08:00:00 EDTThe invention relates to an optical measuring device (1) for capturing at least one parameter of at least one eye (10l, 10r) of a test person (31) wearing the optical measuring device (1), comprising a frame (4), which is configured to fix the optical measuring device (1) to the head of the test person (31), at least one capturing unit (3l, 3r), which is configured to optically capture the at least one parameter of the at least one eye (10l, 10r), and an illumination unit (9, 21, 22) for illuminating the at least one eye (10l, 10r), wherein an illumination characteristic is adjustable by means of the illumination unit (9, 21, 22).
Tue, 19 May 2015 08:00:00 EDTAn ophthalmologic imaging apparatus includes an observation light source configured to generate infrared light for illuminating a subject's eye via an illumination optical system, an imaging unit configured to receive light returned from the subject's eye via an imaging optical system, and an electronic shutter control unit configured to refresh charge generated caused by light received by the imaging unit in response to turning off of the observation light source.
Tue, 19 May 2015 08:00:00 EDTThe image sensing apparatus comprises a first scan unit for scanning light from an OCT light source and light from an SLO light source in a first direction of a test object, and a second scan unit for scanning the light from the OCT light source in a second direction different from the first direction of the test object. The image sensing apparatus acquires tomographic images of the test object along the first direction when the first scan unit scans the light from the OCT light source, and acquires cross-over images of the test object corresponding to the tomographic images when the first scan unit scans the light from the SLO light source.
Tue, 19 May 2015 08:00:00 EDTAn image processing apparatus includes a fundus image acquisition unit configured to acquire a fundus image of an eye, a tomographic image acquisition unit configured to acquire a polarization-sensitive tomographic image of the eye, and a display control unit configured to cause a display unit to display, superimposed on a position in the fundus image which corresponds to a discontinuous portion in a predetermined layer of the eye shown in the polarization-sensitive tomographic image, a display form indicating the discontinuous portion.
Tue, 19 May 2015 08:00:00 EDTIn order to place a coherence gate as close as possible to a object, provided is a tomographic image photographing apparatus including: a moving unit for moving the coherence gate corresponding to a difference between an optical path length of measuring light and an optical path length of reference light; and a control unit for controlling the moving unit so as to further move the coherence gate from a second position based on first combined light and second combined light of the object, which are respectively acquired at a first position of the coherence gate and the second position at which the coherence gate is placed after being moved from the first position to the object side by the moving unit.
Tue, 19 May 2015 08:00:00 EDTExemplary embodiments enable an enhanced direct-viewing optical device to include customized adjustments that accommodate various optical aberrations of a current user. Customized optical elements associated with an authorized current user are incorporated with the direct-viewing optical device to produce a specified change in optical wavefront at an exit pupil. Possible replacement optical elements may have refractive and/or reflective and/or diffractive and/or transmissive characteristics based on current performance viewing factors for a given field of view of the direct-viewing optical device. Some embodiments enable dynamic repositioning and/or transformation of replaceable corrective optical elements responsive to a detected shift of a tracked gaze direction of a current user. Replaceable interchangeable corrective optical elements may be fabricated for current usage or retained in inventory for possible future usage in designated direct-viewing optical devices.
Tue, 19 May 2015 08:00:00 EDTA method of measuring morpho-geometrical parameters of a person wearing eyeglasses includes causing the person to observe a point situated in front at infinity while holding the head naturally on a direction (24) that is substantially horizontal, acquiring a first image of the position of the frame (21) in this first posture, causing the person to observe the target (8, 18) placed in a known position relative to the image acquisition system, by adopting a position that is natural and comfortable and that involves at least a tilting movement of the head; acquiring a second image of the position of the frame (21) in this second posture, determining the positions of the eyes (27) from one of the two images, computer processing of the two images obtained in order to determine the morpho-geometrical parameters of the person, and delivering the results of the measurements.
Tue, 19 May 2015 08:00:00 EDTA variable focus optical apparatus including a rigid, curved, transparent optical component; two transparent, distensible membranes attached to a periphery of the rigid optical component to define two cavities, a first cavity between the rigid optical component and a first membrane and a second cavity between the first membrane and a second membrane; and a variable amount of fluid filling each of the cavities, and a reservoir containing additional fluid and in fluid communication with the cavity, wherein the reservoir is configured to provide injection of fluid into the cavity or withdrawal of fluid out of the cavity in response to a force or an impulse.
Tue, 19 May 2015 08:00:00 EDTEmbodiments of the present invention relate to a multifocal lens having a diffractive optical power region and a progressive optical power region. Embodiments of the present invention provide for the proper alignment and positioning of each of these regions, the amount of optical power provided by each of the regions, the optical design of the progressive optical power region, and the size and shape of each of the regions. The combination of these design parameters allows for an optical design having less unwanted astigmatism and distortion as well as both a wider channel width and a shorter channel length compared to conventional PALs. Embodiments of the present invention may also provide a new, inventive far-intermediate distance zone and may further provide for increased vertical stability of vision within a zone of the lens.
Tue, 19 May 2015 08:00:00 EDTTechniques for providing eyewear with electrical components are disclosed. The electrical components can provide electrical technology to eyewear without having to substantially compromise aesthetic design principles of the eyewear. The electrical components can be partially or completely internal to eyewear. The electrical components can also be attached to the eyewear as an after-market enhancement. The electrical components can operate independently or together with other electrical components provided elsewhere. Apparatus for presenting after-market electrical components are also disclosed.
Tue, 19 May 2015 08:00:00 EDTA frame for glasses, masks for professional or sports use, adapted to support at least one corrective and/or protective lens in a position which during use is located in front of the ocular region of the user, the frame including at least one through opening which is open toward the skin of the user who is wearing it, and at least one waterproof and vapor-permeable functional arranged so as to obstruct in a vapor-permeable manner the at least one opening to allow vapor permeation of the skin of the user, preventing a return of condensation toward the skin.
Tue, 19 May 2015 08:00:00 EDTAn article of eyewear includes an elongated bi-stable spring, two lenses disposed along a side edge of the elongated bi-stable spring in a spaced apart relationship with each other along the side edge, a flexible covering encasing the elongated bi-stable spring and the two lenses, and an arcuate shape defined between the two lenses.
Tue, 19 May 2015 08:00:00 EDTAn ophthalmological device, comprising an eye patch, a photovoltaic, and a battery, wherein said photovoltaic is interconnected to said battery.
Tue, 12 May 2015 08:00:00 EDTPhotochromic-dichroic articles are provided, which include a substrate having a first surface, a fixed-polarized layer over the first surface of the substrate, and a photochromic-dichroic layer over the first surface of the substrate. The fixed-polarized layer optionally includes a fixed-colorant and has a first polarization axis. The photochromic-dichroic layer includes a photochromic-dichroic compound that is laterally aligned within the photochromic-dichroic layer, and which defines a second polarization axis. The first polarization axis and the second polarization axis are oriented relative to each other at an angle of greater than 0° and less than or equal to 90°. The photochromic-dichroic articles can provide, for example, increased optical density and/or increased kinetics when exposed to a given amount of actinic radiation.
Tue, 12 May 2015 08:00:00 EDTThe present invention relates to photochromic materials that include one or more indeno-fused naphthopyrans that have particular groups at the 7, 11, and 13 positions thereof, and at the position alpha to the oxygen of the pyran ring thereof. With some embodiments, hydrogen or an alkoxy group is bonded to the 7 position, an optionally substituted phenyl is bonded to the 11 position, two alkyl groups are bonded to the 13 position, and two optionally substituted phenyl groups are bonded to the position alpha to the oxygen of the pyran ring of the indeno-fused naphthopyran compound. The 13 position of the indeno-fused naphthopyrans is free of ether groups in which an ether oxygen is bonded to the 13 position, and hydroxyl. The present invention also relates to photochromic articles and compositions that include such indeno-fused naphthopyrans.
Tue, 12 May 2015 08:00:00 EDTAn ophthalmological device (1) in accordance with an embodiment of the present application includes an optical transmission system (5) for transmitting femtosecond laser pulses to a projection objective (3) for projecting the femtosecond laser pulses onto or into eye (2) tissue. The ophthalmological device (1) further includes an objective changing device (4) for changing and connecting the projection objective (3) to the optical transmission system (5). The objective changing device (4) includes more than one different projection objective (3) connected mechanically with each other, and the objective changing device (4) is configured to convey one of the projection objectives (3) to the optical transmission system (5) for connecting the respective projection objective (3) to the optical transmission system (5). The objective changing device (4) makes it possible to adapt the laser-based ophthalmological device (1) for new applications without the need for extensive reconfigurations and/or costly vario-lense objectives.
Tue, 12 May 2015 08:00:00 EDTAn electronic eyeglasses includes a camera module and a controller. The camera module captures consecutive images of eyes wearing the electronic eyeglasses. The controller includes a recognition module, a storage module, and a control module. The recognition module recognizes movement of the eyes by processing the consecutive images. The storage module stores an index table having a collection of eye movements and a collection of commands each of which is associated with one of the eye movements. The control module indexes a command from the index table using the movement of the eyes and controls the electronic eyeglasses to execute the command.
Tue, 12 May 2015 08:00:00 EDTA diseased retina has a blind spot where the center of the retina, called the fovea, exists. A compensation system could comprise first measuring a patient's healthy regions of the retina called PRL. A video camera could be mounted on a table, such as for reading applications, but preferably mounted on an eyeglass frame, capture an area of regard (AR). This AR is sent to a computer which directs a projector (such as a MEMS projector) to direct the AR using his healthy area of his retina. Improvements include adding an eyeball location sensor to keep the AR focused on a moving PRL. Another improvement is dithering the AR image in millimeter sized oscillations on the moving PRL. Reading enhancement software such as Spritz® can be integrated into the computer to display the enhanced text onto the PRL.
Tue, 12 May 2015 08:00:00 EDTAn ophthalmic apparatus includes a control unit configured to, when a manipulated value detected by a manipulated value detection unit is a first manipulated value within a predetermined range, control to move the moving unit by a fine motion operation of moving the moving unit at a low speed, and when the manipulated value is a second manipulated value outside the predetermined range, control to move the moving unit by a coarse motion operation of moving the moving unit at a speed higher than that in the fine motion operation.
Tue, 12 May 2015 08:00:00 EDTA ophthalmologic method and apparatus for processing a captured image of a tear film lipid layer on a cornea of a patient's eye to be examined and for classifying types of dry eye of the patient's eye. The captured image of the tear film lipid layer is processed to measure a movement speed of the tear film lipid layer at the time of opening of the patient's eyelid. The captured image of the tear film lipid layer is further processed to measure a time until the tear film lipid layer is broken up after the patient's eyelid has been opened and a break up region is detected. The type of dry eye of the patient's eye is classified based on the two measurement results.
Tue, 12 May 2015 08:00:00 EDTMethods of fabricating and prescribing lenses suitable for color blindness and dyslexia correction are disclosed. The corrective lens may be formed of an optically transparent base material, which is tinted to a desired color for correction by immersion in a colorant dye. The color tinted lens is then tinted by a neutral tint dye to render the lens observable as a regular corrective lens. Prescription of such lenses may be based on a dynamically balanced, or haploscopic, fashion of prescription that comprises selecting a first visual filter from a set of sixteen filters and a second visual filter from the remaining set of fifteen filters, the first for the dominant eye and the second for non-dominant eye.
Tue, 12 May 2015 08:00:00 EDTTranslating, multifocal contact lens pairs with optical power zones which are dissimilar between the first and second lenses of the pair are utilized for correcting presbyopia in the wearer. Each lens may differ in segment height, power, asphericity, shape, orientation and/or inset of the optical power subzones thereby providing clear and comfortable vision at far, intermediate and near distances.
Tue, 12 May 2015 08:00:00 EDTThe present invention generally relates to integrating electronic components into an electro-active frame for driving electro-active focusing lenses. This is accomplished in a cosmetically pleasing manner that allows a platform of frame systems to be built from a single electronic module. Specifically, the present invention discloses controlling an electro-active lens in a deliberate, hands free manner that gives the user control of the electro-active lens.