Autokeratomileusis Laser

Seymour P. Kern

doi:10.1117/12.937323

10 March 1987 Autokeratomileusis Laser

Seymour P. Kern

Proceedings Volume 0712, Lasers in Medicine; (1987) https://doi.org/10.1117/12.937323
Event: Cambridge Symposium-Fiber/LASE '86, 1986, Cambridge, MA, United States

Abstract

Refractive defects such as myopia, hyperopia, and astigmatism may be corrected by laser milling of the cornea. An apparatus combining automatic refraction/keratometry and an excimer type laser for precision reshaping of corneal surfaces has been developed for testing. When electronically linked to a refractometer or keratometer or holographic imaging device, the laser is capable of rapidly milling or ablating corneal surfaces to preselected dioptric power shapes without the surgical errors characteristic of radial keratotomy, cryokeratomileusis or epikeratophakia. The excimer laser simultaneously generates a synthetic Bowman's like layer or corneal condensate which appears to support re-epithelialization of the corneal surface. An electronic feedback arrangement between the measuring instrument and the laser enables real time control of the ablative milling process for precise refractive changes in the low to very high dioptric ranges. One of numerous options is the use of a rotating aperture wheel with reflective portions providing rapid alternate ablation/measurement interfaced to both laser and measurement instrumentation. The need for the eye to be fixated is eliminated or minimized. In addition to reshaping corneal surfaces, the laser milling apparatus may also be used in the process of milling both synthetic and natural corneal inlays for lamellar transplants.

Citation Download Citation

Seymour P. Kern "Autokeratomileusis Laser", Proc. SPIE 0712, Lasers in Medicine, (10 March 1987); https://doi.org/10.1117/12.937323

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KEYWORDS

Excimer lasers

Laser vision correction

Eye

Laser ablation

Monochromatic aberrations

Cornea

Laser therapeutics

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