Stephen F. Ball

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The pigment dispersion syndrome is associated with a secondary open-angle glaucoma most commonly found in young, myopic, white males. We studied 20 cases (38 eyes) of pigment dispersion syndrome in black individuals as defined by heavy deposition on the corneal endothelium and trabecular meshwork with increased intraocular pressure but no other ocular(More)
This study was conducted to 1) determine milk yield of sows that were machine milked up to four times daily; 2) determine the effect of pig substitution on milk yield; 3) assess litter weight changes for sows that are milked; and 4) determine milk composition. Eight sows were milked four times daily to d 51 postpartum. Sows either maintained their own(More)
PURPOSE To evaluate our early experience with the Baerveldt implant in patients with complicated glaucoma. METHODS We reviewed the charts of all patients with more than six months of follow-up after placement of a Baerveldt implant at LSU Eye Center. Surgery was considered a success if intraocular pressure was 21 mm Hg or less (with or without(More)
A prospective study was performed to determine the prevalence of exfoliation syndrome in a glaucoma population of South Louisiana. Five hundred consecutive open angle glaucoma patients over 50 years of age (median age 70.6 years) from both indigent clinic and private referral sources were examined for the presence of exfoliation material on the lens(More)
This study was designed to 1) determine milk yield of sows that were machine milked; 2) assess the effects of pulsation rate, pulsation ratio, and pig removal on milk yield; and 3) assess litter weights. In Exp. 1, four sows were milked daily to 60 d postpartum. There were differences (P < .05) in milk yield among sows, the greatest being 1,898 mL/d. Daily(More)
The present paper describes intracellular changes in ribonuclease specific activity during Ca2+-induced sporangium formation in the water mold Achyla bisexualis. The enzymes undergo a decrease in activity prior to crosswall formation followed by an increase in activity during spore cleavage. As spore discharge occurs the RNase activity again decreases. A(More)
Orcolon, a new viscoelastic substance, was withdrawn from the market in the United States by the manufacturer (Optical Radiation Corporation [ORC], Azusa, Calif) because of reports of delayed sustained increases in intraocular pressure (IOP) observed in patients who had undergone anterior segment surgery involving the use of this product. We examined the(More)
The present paper describes intracellular changes in ribonuclease specific activity during Ca2+-induced sporangium formation in the water mold Achlya bisexualis. The enzymes undergo a decrease in activity prior to crosswall formation followed by an increase in activity during spore cleavage. As spore discharge occurs the RNase activity again decreases. A(More)
Glaucoma is considered to be an uncommon complication of Hansen's disease (leprosy). This study determined the prevalence and characteristics of glaucoma in a large institutionalised leprosy population. All 193 patients currently residing at the Gillis W Long Hansen's Disease Center received a complete ophthalmic examination and review of their records. All(More)