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Article
December 1993

Prospective Evaluation of the Effect of Pseudophakic Cystoid Macula Edema on Contrast Sensitivity

Author Affiliations

From Case Western Reserve University, Cleveland, Ohio (Drs Ibanez, Lesher, Singerman, and Rice); Vistech Consultants Inc, Dayton, Ohio (Mr Keep); and Retina Associates of Cleveland (Drs Singerman and Rice).

Arch Ophthalmol. 1993;111(12):1635-1639. doi:10.1001/archopht.1993.01090120057022
Abstract

Objective:  To evaluate the effect of pseudophakic cystoid macular edema (PCME) on contrast sensitivity.

Design:  Best-corrected visual acuity, fluorescein angiogram, and contrast sensitivity measurements were obtained before surgery and at 8 weeks and 8.5 months after surgery. Eyes were classified as having no PCME, transient PCME, or persistent PCME.

Participants:  The study population consisted of 31 consecutive patients undergoing extracapsular cataract extraction with posterior chamber intraocular lens implantation between September 1990 and March 1991.

Main Outcome Measurements:  Outcomes were bestcorrected visual acuity and contrast sensitivity.

Results:  Analysis of variance showed a significant decrease for all spatial frequencies at 8 weeks (P<.005) and for higher frequencies at 8.5 months (P<.05) in both PCME groups and for higher frequencies at 8 weeks in the transient PCME group.

Conclusion:  Decrease in contrast sensitivity associated with PCME may account for persistent visual difficulties despite good Snellen visual acuity.

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