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| Number | Title | Issue Date |
| 7264354 | Method and apparatus for correcting vision using an electro-active phoropter An electro-active phoropter and a method of using the electro-active phoropter to measure a patient's vision prescription is disclosed. The electro-active phoropter includes a series of individually addressable electro-active lenses. The lenses have either a positiv... | 09/04/2007 |
| 7241013 | Optometric apparatus An optometric apparatus comprises: a pair of right and left lens chamber units, each unit including a test window and optical elements to be selectively disposed in the test window; and a controller including a transmitting part which transmits a control signal in t... | 07/10/2007 |
| 7198367 | Fundus imaging apparatus and fundus imaging method A fundus imaging apparatus comprises: a beam emitter which simultaneously emits a first laser beam and a second laser beam having a different wavelength from the first beam; an irradiation optical system having a beam scanner which scans the emitted first and second... | 04/03/2007 |
| 7156517 | Optometric apparatus A subjective optometric apparatus comprises: right-eye and left-eye examination units, each including a test window and optical elements that are manually selectively disposed in the test window; an indicator provided in each examination unit, the indicator being ar... | 01/02/2007 |
| 7144112 | Optometric apparatus An optometric apparatus (2) includes a rotary prism (136a, 136b) disposed in front of the eye (E), for adding a prism degree to the eye (E); a rotation device including a pulse motor (181, 184) and a rotation transmitting me... | 12/05/2006 |
| 6918670 | System, apparatus, and method for correcting vision using an electro-active lens A spectacle lens is disclosed. The disclosed lens provides a vision correcting area for the correction of a wearer's refractive error. The viewing correction area provides correction for non-conventional refractive error to provide at least a part of the wearer's vi... | 07/19/2005 |
| 5812241 | Compact refractor for subjective examination of human eyes A compact and precise phoropter of low requirements as to material and favorable as to kinematics comprises two observation channels in each of which a plurality of equal sized disks are rotatably and coaxially arranged about an axle, each of said disks b... | 09/22/1998 |
| 5671039 | Glare tester A glare tester suitable for use with conventional subjective refractors for testing visual acuity is disclosed. The tester may be fitted to new refractors or retrofitted to existing refractors. The preferred tester is a plastic annular ring with a plurali... | 09/23/1997 |
| 5650839 | Retinoscope assembly with scale Techniques and retinoscopic apparatus for measuring or determining a patient's optical error are disclosed. The techniques include overrefraction and can be performed from a fixed position, avoiding the practitioner's need to move back and forth relative ... | 07/22/1997 |
| 5619290 | Phase-contrast haploscope and rotary disc for use therewith A haploscope has a housing defining left and right viewing apertures disposed to permit substantial alignment with a subject's left and right eyes and permit viewing through the housing. Projection light sources for projection of left and right images are... | 04/08/1997 |
| 5479221 | Hand-held line grid interference retinometer An apparatus for testing visual acuity, or clearness of vision, particularly when there is impaired refracting medium in an eye, includes a lamp (1) and a pin-hole diaphragm (4) arranged in a light-beam path downstream of the lamp with a single diffractio... | 12/26/1995 |
| 5424789 | Optical device for use with a slit lamp biomicroscope An optical device comprising a lens and an adjustable lens holder which is adapted to be positioned on an existing slit lamp biomicroscope such that the lens may be selectively positioned in the path of the illuminating light beam from the slit lamp light... | 06/13/1995 |
| 5300965 | Corneal shape measuring apparatus This invention provides a corneal shape measuring apparatus that can correctly measure the shape of the cornea of a subject's eye from an image of a target reflected by the cornea even if the optic axis of a hand-held indicator is inclined with respect to... | 04/05/1994 |
| 5223864 | Phoropter The phoropter is provided with a rotating knob means for selecting specific types of functions (12,13,14), the angular position being picked up by means of a pulse generator, e.g. a light barrier (8,9) in the form of an electric signal (amplifier 10) and,... | 06/29/1993 |
| 4673265 | Procedure and device for automatic refractometric measurement of the degree of ametropia of a human eye This invention concerns a procedure and device for refractometric measurement of the degree of ametropia of a human eye. The device for this invention comprises a light-emitting source combined with a focusing lens, which produces an image of this source on th... | 06/16/1987 |
| 4580559 | Indirect ophthalmoscopic photocoagulation delivery system for retinal surgery In a preferred embodiment, a portable ophthalmoscope having low-power telescope elements and having an internal source of viewed-field illumination, relies on a patient's focusing properties to inspect the fundus of the eye. A laser-beam source is flexibl... | 04/08/1986 |
| 4385813 | Phoropter Method for obtaining cross cylinder-like actions for using the adjusting or aligning measurement known as the cross cylinder method in phoropters for subjective refraction, wherein the spherical and cylindrical lens discs of the phoropter are adjusted in ... | 05/31/1983 |
| 4196980 | Opthalmoscope examination pattern having light transmissive fixation point The present application discloses an examination pattern for use in conjunction with ophthalmoscopes which provides a light transmissive opening at the pattern center to act as a reference point in the examination of the eye.... | 04/08/1980 |
| 4125320 | Retinometer A laser interference instrument for determination of the visual acuity of the human eye includes an interference optical system for producing an interference light pattern mounted on a slit lamp microscope disposed on an instrument support that is finely ... | 11/14/1978 |
