Claims
- 1. A system for shape modification of an eye cornea, comprising means for irradiating and shrinking selected zones of collagen tissue of the cornea with energy having a wavelength in the range of about 1.8 to 2.55 microns, and second means for measuring corneal shape before and after application of such energy to determine desired and resulting alteration of corneal refraction.
- 2. A keratoplasty system for shape modification of an eye cornea, comprising means for irradiating and shrinking selected zones of collagen tissue of the cornea with coherent laser energy of infrared wavelength corresponding to corneal-collagen absorption coefficients in the range of about 15 to 120 cm.sup.-1, and second means for measuring corneal shape before and after application of such energy to determine desired and resulting alteration of corneal refraction.
CROSS-REFERENCE TO RELATED APPLICATION
This is a continuation-in-part of application Ser. No. 07/374,958 (Jun. 30, 1989) U.S. Pat. No. 4,976,709 which is a continuation-in-part of application Ser. No. 07/285,379 (Dec. 15, 1988) abandoned which is a continuation of application Ser. Nos. 07/170,070 (Mar. 14, 1988) abandoned, 07/067,381 (Jun. 24, 1987) abandoned, and 06/914,169 (Oct. 1, 1986) abandoned, the latter being a continuation-in-part of application Ser. No. 06/781,225 (Sep. 27, 1985), abandoned.
US Referenced Citations (4)
Foreign Referenced Citations (1)
Number |
Date |
Country |
3148748 |
Jul 1983 |
DEX |
Non-Patent Literature Citations (2)
Entry |
Mainster, "Ophthalmic Applications of Infrared Lasers--Thermal Considerations", Assoc. for Res. in Vis. & Ophth., Apr. 1979. |
Cotliar et al., "Exaimer Laser Radial Keratotomy", Ophthalomology, Feb. 1985. |
Continuations (3)
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Number |
Date |
Country |
Parent |
170070 |
Mar 1988 |
|
Parent |
67381 |
Jun 1987 |
|
Parent |
914169 |
Oct 1986 |
|
Continuation in Parts (3)
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Number |
Date |
Country |
Parent |
374958 |
Jun 1989 |
|
Parent |
285379 |
Dec 1988 |
|
Parent |
781225 |
Sep 1985 |
|