Identification of metabolic risk factors for posterior subcapsular cataract.
To determine the possible role of glucose and lipid metabolism in the formation of cataract in elderly people we studied 463 patients undergoing cataract extraction. Of 188 males, 35 (19%) had posterior subcapsular cataract (group 1), 27 (14%) had cortical cataract (group 2), and 24 (13%) had nuclear cataract (group 3). Of 275 females, 27 (10%) belonged to group 1, 44 (16%) to group 2, and 33 (12%) to group 3. Patients in group 1 were significantly younger than those of group 2 and 3. In addition, patients in group 1 had higher concentrations of fasting serum triglycerides than patients of group 2 or 3. No difference in mean concentrations of serum cholesterol was observed between the different groups. However, fasting plasma glucose concentrations were higher in group 1 patients than in those of group 2 or 3. Patients in group 1 had a higher 'Broca index' than those in group 2 or 3, with the exception of males in group 3. These results suggest that the association of hypertriglyceridemia, hyperglycemia and obesity favors the formation of a specific morphologic type of lens opacity, posterior subcapsular cataract, occurring at an early age. They imply the possibility of effective modes of preventive therapy for a subgroup of patients with 'senile' cataract.[1]References
- Identification of metabolic risk factors for posterior subcapsular cataract. Jahn, C.E., Janke, M., Winowski, H., von Bergmann, K., Leiss, O., Hockwin, O. Ophthalmic Res. (1986) [Pubmed]
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