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Abstract
Abstract
The Distribution of Cataract Types in Diabetics and Non-diabetics A Densitometric Study with the Topcon-Scheimpflug Camera
Schäfer C.1, Lautenschläger C.2, Struck H. G.1
1Department of Ophthalmology and 2Institute of Medical Epidemiology, Biometry and Informatic, Martin-Luther University Halle-Wittenberg
Purpose: Diabetes mellitus type II represents a higher risk in cataract formation. We wanted to know which types of cataract appear in diabetics.
Method: 46 diabetic (group I) and 83 nondiabetic patients (group II) at the age of 40 to 100 years who had to undergo a cataract operation were screened of exclusion and inclusion criterions. After that the photographic documentation of the opaque lens followed using the Topcon SL-45 (Scheimpflug). Densitometric analyses of each image were also performed and classified into the different types of cataract with reference to the classification system of Eckerskorn et al (1986).
Results: The distribution of cataract types is in follow (absolute values): nuclear cataract = 4 (I = 1; II = 3), nuclear cataract and posterior subcapsular opacity = 0, nuclear, posterior, and anterior subcapsular opacity = 7 (group I = 2; group II = 5), nuclear and anterior cortical opacity = 37 (group I = 13; group II = 24), waterclefts and spokes = 9 (group I = 2; group II = 7), wedge -shaped cataract = 1 (group I = 1), coronary cataract = 2 (group I = 2), opacity of the deeper anterior cortex = 7 (group I = 4; group II = 3), opacity of the anterior and posterior cortex = 13 (group I = 6;