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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

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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