Preliminary results of tracked photorefractive keratectomy (T-PRK) for mild to moderate myopia with the autonomous technologies excimer laser at Cedars-Sinai Medical Center

Ezra I. Maguen M.D.; James J. Salz M.D.; Anthony B. Nesburn M.D.

doi:10.1117/12.275098

26 May 1997 Preliminary results of tracked photorefractive keratectomy (T-PRK) for mild to moderate myopia with the autonomous technologies excimer laser at Cedars-Sinai Medical Center

Ezra I. Maguen M.D., James J. Salz M.D., Anthony B. Nesburn M.D.

Author Affiliations +

Proceedings Volume 2971, Ophthalmic Technologies VII; (1997) https://doi.org/10.1117/12.275098
Event: BiOS '97, Part of Photonics West, 1997, San Jose, CA, United States

Abstract

Preliminary results of the correction of myopia up to -7.00 D by tracked photorefractive keratectomy (T-PRK) with a scanning and tracking excimer laser by Autonomous Technologies are discussed. 41 eyes participated (20 males). 28 eyes were evaluated one month postop. At epithelization day mean uncorrected vision was 20/45.3. At one month postop, 92.8 of eyes were 20/40 and 46.4% were 20/20. No eye was worse than 20/50. 75% of eyes were within +/- 0.5 D of emmetropia and 82% were within +/- 1.00 D of emmetropia. Eyes corrected for monovision were included. One eye lost 3 lines of best corrected vision, and had more than 1.00 D induced astigmatism due to a central corneal ulcer. Additional complications included symptomatic recurrent corneal erosions which were controlled with topical hypertonic saline. T-PRK appears to allow effective correction of low to moderate myopia. Further study will establish safety and efficacy of the procedure.

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Ezra I. Maguen M.D., James J. Salz M.D., and Anthony B. Nesburn M.D. "Preliminary results of tracked photorefractive keratectomy (T-PRK) for mild to moderate myopia with the autonomous technologies excimer laser at Cedars-Sinai Medical Center", Proc. SPIE 2971, Ophthalmic Technologies VII, (26 May 1997); https://doi.org/10.1117/12.275098

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