Corneal light scattering after laser in situ keratomileusis and photorefractive keratectomy.
OBJECTIVE
To compare corneal light scattering after laser in situ keratomileusis and photorefractive keratectomy in rabbit eyes.


METHODS
For laser in situ keratomileusis, a 5-mm, -10-diopter spherorefractive resection was performed on the stromal bed under a corneal flap. Corneal light scattering was objectively measured for 12 weeks, and compared to corneal light scattering after photorefractive keratectomy (5 mm, -10 diopters).


RESULTS
Corneal light scattering was significantly lower in the laser in situ keratomileusis group than in the photorefractive keratectomy group at all time points after surgery (P < .01 at weeks 1 through 6, and P = .03 at week 12).


CONCLUSIONS
In this experimental study, laser in situ keratomileusis resulted in significantly less corneal light scattering than photorefractive keratectomy.
Jain
S
S
Wilmer Ophthalmological Institute, Johns Hopkins University, Baltimore, MD, USA.
Khoury
J M
JM
Chamon
W
W
Azar
D T
DT
D000818:Animals; D003315:Cornea / Q000502:physiology* / Q000601:surgery; D003319:Corneal Stroma / Q000601:surgery; D054018:Lasers, Excimer; D008027:Light; D018903:Photorefractive Keratectomy; D011446:Prospective Studies; D011817:Rabbits; D012542:Scattering, Radiation