CHOROIDAL ISCHEMIA AFTER EXTRACAPSULAR CATARACT EXTRACTION BY PHACOEMULSIFICATION

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Abstract
Three patients developed apparent choroidal ischemia after phacoemulsification. The outer half of the posterior retina appeared white after operation, with confluent lesions in the posterior pole and splotchy white areas in the midperiphery. The separate lesions appeared similar in pattern to the lobular division of the choriocapillaris, and the retinal vessels were not involved. The white lesions resolved in two to three weeks, leaving alterations in the pigment epithelium. Vision was transiently reduced in each eye but returned to a nearly normal level in two of three affected eyes, although paracentral scotomas persisted. In each case of phacoemulsification, the posterior lens capsule was either damaged or was removed. In all three cases, an investigational type of irrigating solution (BSS Plus) containing balanced salt, glutathione, and other constituents was used. Controlled ocular compression was performed before operation using a pneumatic device in two cases. However, the cause of retinal and choroidal damage now described was probably excessively elevated intraocular pressure during the operation.

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