家兔巩膜瓣手术对角膜曲率的影响

THE EFFECT OF THE SCLERAL FLAP SURGERY ON THE CORNEAL CURVATURE OF RABBITS

Resections and recessions of the scleral flaps were performed on 36 eyeballs of rabbits to observe the effects on the corneal curvature after operation. The results showed that the scleral flap resection increased the corneal curvature and the scleral flap recession decreased the corneal curvature along the meridian of incision. The corneal astigmatism caused by the operation was higher in the 1.0 mm group than in the 0.5 mm group. The resection and the penetrating procedures induced astigmatism higher than the recession and the non-penetrating procedure, respectively. The follow-up after 3 months revealed that the induced astigmatism could decrease in the first month after operation and then tend to be stable. It is suggested that the scleral flap surgery have the possibilities of changing corneal curvature and be a feasible way of correcting corneal astigmatism.