Journal of the Korean Ophthalmological Society 1995;36(10):1677-1681.
Published online October 1, 1995.
A Prospective Study of Ptosis following Cataract Surgery.
Kyung Ho Lee, Jin Ki Lee, Young Ahn
1Department of Ophthalmology, Fatima Hospital, Taegu, Korea.
2Department of Ophthalmology, School of Medicine, Dongguk University, Kyungju, Korea.
백내장 수술후 발생하는 안검하수의 전향적 연구
이경호(Kyung Ho Lee),이진기(Jin Ki Lee),안영(Young Ahn)
Abstract
A prospective study was investigated to evaluate the effect of local anesthesla, surgical technique of cataract and superior rectus muscle injury on postoperative ptosis. Preoperative and postoperative measurements of palpebral fissure, margi reflex distance(MRD), margin limbal distance(MLD), levator function and photograph were taken. Two hundreds patients were randomized into four groups to study these effect. Group A received a Van Lint eyelid block and a superior rectus bridle suture. Group B received a Van Lint block and an episcleral retraction suture. Group C received an O'Brien eyeli block and a superior rectus bridle suture. Group D received an O'Brien block and an episcleral retraction suture. Postoperative measurements of palpebral fissure, margin reflex distance(MRD), margin limbal distance(MLD), levator functi and photograph were taken at first day and eight weeks postoperatively and ptosis patients of a drop in the lid margin of a 2mm or more were follow up at six months postoperatively. Ptosis patients of a drop in the lid margin of 2mm or more were found in 20% of group A, 18% of group B, 14% of group C, 4% of group D, and 14% of all cases. Postoperative ptosis was statistically reduced in group D at eight weeks postoperatively(compared with group A and D P=0.0091, group B and D P=0.0042, group C and D P=0.0268). It appears that trauma to the superior retus muscle complex is the most critical factor in postoperative ptosis and we could minimize this effect in group D.
Key Words: Cataract;Episcleral retraction suture;O'Brien eyelid block;Ptosis;Superior rectus bridle suture;Van Lint eyelid block


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