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Scanning laser entoptic perimetry for the screening of macular and peripheral retinal disease
D J Plummer1, S P Azen, W R Freeman
1Shiley Eye Center, Department of Ophthalmology, School of Medicine, University of California, San Diego, La Jolla, CA 92093-0946, USA. dplummer@ucsd.edu
Objective:
To determine the effectiveness of scanning laser entoptic perimetry as a noninvasive platform for screening for retinal damage in visually asymptomatic patients within the central 120 degrees (diameter) of vision.
Design:
A masked study comparing entoptic perimetry with fundus photographs.
Setting:
The Shiley Eye Center and the AIDS Ocular Research Unit at the University of California, San Diego.
Patients:
Fifty-eight patients recruited during ophthalmologic visits for treatment or follow-up of ocular disease.
Measurements:
For each testing session, we compared the presence of a disturbance in the entoptic stimulus with the presence of retinal disease within the central 120 degrees of vision, centered on the fovea.
Results:
Scanning laser entoptic perimetry has a sensitivity and specificity of more than 90%, a positive predictive value of 100%, and a negative predictive value of 89% for screening retinal lesions within the central 120 degrees diameter of vision.
Conclusion:
Scanning laser entoptic perimetry may be an effective and inexpensive screening test for diagnosing retinal disease in hospitals and community clinics. Arch Ophthalmol. 2000;118:1205-1210