Excimer Laser Photorefractive Keratectomy

Visual stability of laser vision correction in an astronaut on a Soyuz mission to the International Space Station

“…[10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26] Initial optical zone diameters were relatively small (4.0 to 5.0 mm) and led to frequent reports of glare and halos around lights at night. 27 Larger optical zones reduced, but did not eliminate, the incidence of night-vision disturbances. 28 Wavefront-guided treatment profile further improved quality of vision and contrast sensitivity compared with previous types of surgery.…”

The Effect of Topical Corticosteroids on Refractive Outcome and Corneal Haze After Photorefractive Keratectomy

“…However, in agreement with our previous series, we found moderately good correlation between haze and regression (r=-.75 on average, Fig 3). 26 Considering other factors such as age and sex, no consistent correlations were found, and care was taken to address these issues in the prospective, randomized design of this trial.…”

Pirenoxine prevents oxidative effects of argon fluoride excimer laser irradiation in rabbit corneas: biochemical, histological and cytofluorimetric evaluations

“…During the last two decades the basic principles and clinical concerns of photorefractive keratectomy (PRK) by Argon Fluoride (ArF) excimer laser have been thoroughly investigated by many authors [1][2][3][4][5][6]. Various surgical procedures for the treatment of myopia, hyperopia, and astigmatism have been successfully introduced into clinical practice in many countries.…”

“…One of the most serious side effects is the development of subepithelial scarring, which exhibits a strong light diffusion (haze) and produces a regression of the curvature correction. The incidence and intensity increase in eyes treated for higher degrees of refractive correction [5,6]. The nature of this surgical follow-up is related to the complex dynamics of the wound healing response.…”