#Itrace topographer software#

Hartmann-Shack Lenslet Array Tscherning Aberrometer Differential Skiascopy Ray Tracing Features: -Rapid, point by point, IR measurement no data confusion -Pupillometry with auto-tracking/capture -Programmable sampling (256 pts.) in any pupil up to 8mm -Open Field Fixation – avoid instrument myopia and measure Accommodation -Corneal Topography integration – able to measure Lens Aberrations

No accommodation Fixed alignment Digital image processing Man-made Accommodation Changing fixation Brain image processing Nature-made TELESCOPE On-Axis design High magnification Fixed aperture Constant detector res.

Off-Axis design No magnification Variable aperture Variable detector res. Night Myopia) Refraction is NOT a FIXED Number! Effects Refraction (Instrument Myopia) Effects Quality of Vision (Aberrations) Where are the Sources of Aberrations? How do they change with Surgery? Cornea: Lens: Astigmatism (Irreg.), Sph & other HOA Astigmatism, Coma & other HOA Pupil Size: Accommodation: Tear Film: Effects Refraction (ex. Vasyl Molebny, DSc Kiev, Ukraine Ioannis Pallikaris, MD Crete, Greece Canadian & Swedish Governmentsģ Why Aberroscopy? Current Laser Technology Permits One to Go Beyond Correction of Sphere and Astigmatism You Can Now Address Your Patient’s Quality of Vision High Order Aberrations Define Quality of VisionĤ Why Ray Tracing? Because… the Eye is NOT a Telescope! Wakil, MD - Tracey Technologies, LLC EyeSys Vision, Inc. The completed devices are shipped world wide as the Tracey Technologies iTrace Combination Ray Tracing Aberrometer/Topographers.1 Integration of Aberrometry and Topography with the i Trace System We currently manufacture the electronics under an OEM agreement with Tracey Technologies.

#Itrace topographer software#

Indus Instruments developed the electronics and the low level software for three generations of these ray tracing devices over a 10 year period. About a hundred such measurements are made across the eye in a fraction of a second and the data is used to compute the refractive index map of the eye.Ī novel feature of this instrument is the acousto-optic deflector that moves the laser beam across the eye without the use any moving parts. To accomplish this a low power infrared laser beam is sent into the eye and the deviation of position of the reflection from the retinal surface from the ideal position is measured to an accuracy within 2 microns (10^-6 meters). One of our customers, Tracey Technologies, Houston, TX, came up with the idea for a single beam refractometer based on retina ray tracing for measuring eye refraction distribution. These laser-based vision correction methods require accurate local parameter information across the eye to enable correction that achieves higher visual acuity. Modern laser technologies enable a more finely controlled cornea reshaping with an array of points of varying corrections across the eye. Conventional means of sight correction, like glasses or contact lenses, deal with global parameters of eye refraction.