Corneal Haze after Excimer Laser Photorefractive Keratectomy for Myopia.

Hanh, Young Ho; Jeung, Yeon Woo; Roh, Joo Hun

Original Article

Journal of the Korean Ophthalmological Society 1997;38(4):559-566.
Published online April 1, 1997.

Corneal Haze after Excimer Laser Photorefractive Keratectomy for Myopia.

Young Ho Hanh, Yeon Woo Jeung, Joo Hun Roh

Department of Ophthalmology, Kosin Medical College.

Excimer Laser 근시교정술후의 각막혼탁

한영호(Young Ho Hahn),정연우(Yeon Woo Jeung),노주헌(Joo Heon Rho)

Abstract

To evaluate croneal haze related to amount of correction, age and sex following excimer laser photorefractive keratectomy(PRK) in myopic eyes, 39months follow-up study on 358 eyes was performed prospectively. The preoperative spherical equivalent refraction ranged from -1.0D to 11.25D(mean -6.18D). The subjective corneal haze grading showed a maximum with mean grading of 0.92 at 2 months and a gradual decrease to 0.14 at 24 months after PRK. The degree of haze was statistically greater with higher amount of correction(p<0.05). No difference was found related to age and sex(p>0.05). Clinically significant corneal haze and scarring was frequent in higher myopia group(p<0.05). Individual variation in corneal haze after PRK was found. However, high myopia is a risk factor of the corneal haze following PRK, and further study to decrease the corneal haze after PRK is necessary.

Key Words: Age;Amount of treatment;Corneal haze;Excimer laser photo-refractive keratectomy;Sex