Patent application number | Description | Published |
20110075098 | CORNEA SHAPE MEASUREMENT APPARATUS - A cornea shape measurement apparatus outputs data useful for prescription as well as injection and installation of a TORIC-IOL. This apparatus includes: a projecting optical system projecting an index for measurement onto a cornea; an illuminating optical system illuminating an anterior segment on which a reference mark is placed; an imaging optical system capturing an anterior segment image containing the reference mark and an image of the index reflected from the cornea; an image processor overlaying an astigmatic axis mark indicating a direction of an astigmatic axis of the cornea, which is calculated based on the index image, on the anterior segment image; and a controller displaying the anterior segment image, which contains the astigmatic axis mark, on a display. | 03-31-2011 |
20110128499 | APPARATUS FOR MEASURING DISTANCE BETWEEN EYE TISSUES - An eye distance measurement apparatus according to one aspect of the invention includes an interfering optical system that projects at least one piece of split light toward an examinee's eye, combines the split light, guides the combined light to a light receiving device and moves an optical member in order to adjust an optical path difference between the two pieces of split light, a mode switching unit that issues a mode switching signal for switching between a first measurement mode for moving the optical member at a first scanning rate and a second measurement mode for moving the optical member at a second scanning rate slower than the first scanning rate, and a calculation and control unit that measures an eye distance, based on an output signal of the light receiving device, obtained in the measurement mode corresponding to the mode switching signal. | 06-02-2011 |
20110157554 | APPARATUS FOR MEASURING OCULAR AXIAL LENGTH - An object of one aspect of the present invention is to obtain a measurement value in accordance with the condition of a crystalline lens of an examinee's eye. An apparatus for measuring ocular axial length includes: a measuring unit which irradiates measurement waves toward a fundus of the examinee's eye, and calculates the ocular axial length of the examinee's eye based on detection signals obtained from reflected waves including waves reflected from the fundus; and a determining unit which acquires reflection information related to an anterior segment of the examinee's eye, extracts reflection signals corresponding to a reflection object between a cornea and a posterior capsule of a crystalline lens based on the acquired reflection information, and determines whether the examinee's eye is a phakic eye or an IOL eye based on the extracted reflection signals. | 06-30-2011 |
20110267582 | OPHTHALMIC APPARATUS - An ophthalmic apparatus includes an imaging optical system for imaging an anterior segment image including a pupil of an examinee's eye, a pupil detection unit for detecting a size of the pupil of the examinee's eye based on the imaged result by the imaging optical system, and an output unit configured to obtain size information of a far vision zone and a near vision zone for a multifocal intraocular lens and output the obtained size information and the size of the pupil detected by the pupil detection unit to be comparable. Accordingly, applicability of the multifocal intraocular lens can be determined accurately and easily. | 11-03-2011 |
20130135582 | OPHTHALMIC APPARATUS AND RECORDING MEDIUM HAVING OPHTHALMIC PROGRAM STORED THEREIN - An ophthalmic apparatus includes: an input unit configured to obtain corneal incision information that is information on a corneal incision to be formed on a cornea of an examinee's eye; an imaging device configured to image an examinee's eye image; and a controller. The controller is configured to calculate first wavefront aberration distribution that is wavefront aberration distribution of the cornea before incision on the examinee's eye based on the examinee's eye image, obtain incision aberration information corresponding to the corneal incision information; calculate second wavefront aberration distribution that is wavefront aberration distribution after formation of the incision based on the first wavefront aberration distribution and the incision aberration information, and output guide information that guides an intraocular lens surgery based on the second wavefront aberration distribution. | 05-30-2013 |