The Effect of External Levator Resection in Blepharoptosis with Poor Levator Function

The postoperative complications of frontalis sling for severe blepharoptosis with poor levator function have included undercorrection, overcorrection, exposure keratitis due to lagophthalmos, lid lag. upper lid asymmetry etc, External levator resection with aponeurotic approach was performed for 77 blepharoptosis patients (106 eyelids) with poor levator function from October 1987 through April 1996 at the Department of Ophthalmology, Yeungnam University, College of Medicine. Unilateral blepharoptosis were 44 eyelids and bilateral cases included 62 eyelids. Levator function was measured 4nim in 23 eyelids, Slum in 22 eyelids and 0-2iBin in 61 eyelids, After the follow up periods of 12-108 months (mean 36.3 months) , satisfactory resuite have been achieved in 44 eyelids (100%) of unilateral ptosis and in 30 eyelids (90.9%) of bilateral ptosis. All eyelids with 4mm levator function was successful, 22 eyelids (86.4%) with 3mm levator function were satisfactory and 61 eyelids (95. 1%) with 0-2mm levator function revealed satisfactory result. Postoperative complications included entropion (4 cases) , undercorection (2 cases) , corneal opacity (I case) and corneal ulcer (1 case). Based on this study, external levator resection could were one of the ideal techniques for severe ptosis with poor to absent. levator function.

Argon Laser Photocoagulation for Neovascularization in Retinal Vein Occlusion

We performed a retrospective study of 47 patients(47 eyes) with retinal vein occlusion who had treated with laser photocoagulation for neovascularization from January 1991 through January 1992. Only cases with a minimum of one year follow up were included in this study. The majority of patients were 50 year old(78.7%). Sixteen patients were male(34%) and thirty one patients were female(66%). The proportion of branch retinal vein occlusion and central retinal vein occlusion was 74.5%, 25.5%, respectively. New vessles elsewhere were developed in 36 eyes(76.6%), new vessles on the disc in 7 eyes(14.9%), and 4 eyes(8.5%) had both types of neovascularization. The percents of regression in neovascularization was 72.3% which ranged from 84% for under 10 disc diameter area of retinal ischemia to 64% for over 10 disc diameter area of retinal ischemia. Vitreous hemorrhage occured in 12 eyes(25.5%) within 1 year and especially when ischemic area was over 10 disc diameters and associated with systemic vascular diseases.