Gel injection adjustable keratoplasty (GIAK): keratometric evaluation on eye-bank eyes

Hassan Tahi; Hiroyuki Kondo; Bernard Duchesne M.D.; William E. Lee; W. Feuer; Jean-Marie A. Parel

doi:10.1117/12.309419

1 June 1998 Gel injection adjustable keratoplasty (GIAK): keratometric evaluation on eye-bank eyes

Hassan Tahi, Hiroyuki Kondo, Bernard Duchesne M.D., William E. Lee, W. Feuer, Jean-Marie A. Parel

Proceedings Volume 3246, Ophthalmic Technologies VIII; (1998) https://doi.org/10.1117/12.309419
Event: BiOS '98 International Biomedical Optics Symposium, 1998, San Jose, CA, United States

Abstract

Purpose: To assess keratometric changes of a new surgical refractive technique (Gel Injection Adjustable Keratoplasty or GIAK) on Eye Bank eyes. Conceived by G. Simon in 1989, GIAK consists of making a flat 360 degree intrastromal annular delamination track centered around the corneal apex and filling it with a soft gel. Methods: The track, which was made with customized helicoidal delaminators, was delaminated parallel to the corneal surface at 80% depth and was filled with a biocompatible crosslinked polyethylene oxide gel. The procedure was preformed on fresh cadaver eyes using 10 delaminators with different inner diameters (4.5, 5.0, 5.5, 6.0, 6.5, 7.0 mm) and widths (1.00 and 1.25 mm). The annular track was filled to capacity. Keratometric changes were evaluated with an automated surgical keratometer. Results: The keratometric changes induced by GIAK were between 3.4 and 11.9 diopters on average. Conclusions: This surgical technique effectively flattens the cornea and promises to be an effective technique for correction of myopia.

Citation Download Citation

Hassan Tahi, Hiroyuki Kondo, Bernard Duchesne M.D., William E. Lee, W. Feuer, and Jean-Marie A. Parel "Gel injection adjustable keratoplasty (GIAK): keratometric evaluation on eye-bank eyes", Proc. SPIE 3246, Ophthalmic Technologies VIII, (1 June 1998); https://doi.org/10.1117/12.309419

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
10 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Cornea

Eye

Molybdenum

Surgery

Tissues

Tissue optics

In vitro testing

Show All Keywords

Keywords/Phrases

Search In:

Publication Years