Multicenter study of photorefractive keratectomy for myopia of 6.00 to 8.00 diopters. VISX Moderate Myopia Study Group

J H Talamo; K Siebert; M D Wagoner; E Yeh; W Telfair

$Multicenter study of photorefractive keratectomy for myopia of 6.00 to 8.00 diopters. VISX Moderate Myopia Study Group$

Journal article

Peer reviewed

Multicenter study of photorefractive keratectomy for myopia of 6.00 to 8.00 diopters. VISX Moderate Myopia Study Group

J H Talamo, K Siebert, M D Wagoner, E Yeh and W Telfair

Journal of refractive surgery (1995), Vol.11(4), pp.238-247

07/1995

PMID: 7496979

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Abstract

To summarize the initial results of excimer laser photorefractive keratectomy (PRK) on 89 eyes of 80 patients with moderate myopia (myopia of -6.00 to -8.00 diopters [D]; mean -6.98 +/- 0.90 D) at nine investigational sites. All treatments used an argon fluoride excimer laser (VISX, Inc, Santa Clara, Calif) using standard settings. Sixty eyes received single-zone 6.0-millimeter ablations and 29 eyes received two-zone ablations. Follow up ranged from 1 month (n = 89) to 6 months (n = 46). At 3 months, uncorrected visual acuity measured 20/40 or better in 75% and 20/20 or better in 18%; 78% were within +/- 1.00 D of intended correction, 38% were within +/- 0.50 D, and 9% lost two or more lines of spectacle-corrected visual acuity. At 6 months, uncorrected visual acuity measured 20/40 or better in 74% and 20/20 or better in 17%; 67% were within 1.00 D of intended correction, 38% within 0.50 D, and 2% (1/46) lost two lines of spectacle-corrected visual acuity. PRK for moderate myopia with large diameter ablation zones appears safe and more predictable than that done using smaller ablation zone diameters. Longer follow up is needed to better define stability, the effects of postoperative corticosteroids, and the use of single-versus double-zone ablations.

Cornea - surgery

Glucocorticoids - therapeutic use

Refraction, Ocular

Follow-Up Studies

Intraocular Pressure

Humans

Middle Aged

Male

Visual Acuity

Lasers, Excimer

Postoperative Care

Photorefractive Keratectomy

Astigmatism - etiology

Ophthalmic Solutions

Adult

Corneal Opacity - etiology

Female

Myopia - surgery

Postoperative Complications

Details

Title: Subtitle: Multicenter study of photorefractive keratectomy for myopia of 6.00 to 8.00 diopters. VISX Moderate Myopia Study Group
Creators: J H Talamo - Keratorefractive Surgery Unit, Massachusetts Eye and Ear Infirmary, Boston, 02114, USA
K Siebert
M D Wagoner
E Yeh
W Telfair
Resource Type: Journal article
Publication Details: Journal of refractive surgery (1995), Vol.11(4), pp.238-247
Publisher: United States
PMID: 7496979
ISSN: 1081-597X
eISSN: 1938-2391
Language: English
Date published: 07/1995
Academic Unit: Ophthalmology and Visual Sciences
Record Identifier: 9983980013302771

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