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S.–Y. Yu, Y.–H. Kim, W.–H. Nam, H.–W. Kwak; Comparison of Preferential Hyperacuity Perimetry (PHP) with OCT and Central Visual Field in Patients with Pigment Epithelial Detachment (PED) . Invest. Ophthalmol. Vis. Sci. 2006;47(13):5699.
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© ARVO (1962-2015); The Authors (2016-present)
The hyperacuity defects on the preferential hyperacuity perimeter (PHP) are known to be produced from elevation of the retinal pigment epithelium (RPE)/photoreceptor layer. The aim of this study was to correlate the findings of the PHP (hyperacuity) with the Optical coherent tomography (OCT, anatomic change) and the central visual field (retinal sensitivity) in patients with pigment epithelial detachment (PED).
Twenty patients with PED detected by fundus examination and OCT underwent PHP, central visual field test, OCT, and fluorescein angiography (FA). The finings of PHP were correlated with the anatomic changes by OCT and retinal sensitivity by central visual field.
Of 20 eyes with PED, 9 had PED only and 11 had PED associated with CNV. PHP was positive in 3 eyes with PED only (33.3%); in 10 eyes with PED associated with CNV (90.9%). The eyes with hyperacuity defect (positive finding on PHP) showed elevation of the RPE/photoreceptor layer by the CNV (PED associated with CNV) or elevation of the RPE with anatomical change of overlying sensory retina in OCT. In 9 eyes with PED only, there was no correlation between hyperacuity defect on PHP and size and height of PED by OCT / retinal sensitivity by central visual field. Of 9 eyes with PED only, mean retinal sensitivity reduced significantly in 4 and significant relative scotoma appeared in 5.
Hyperacuity defect on PHP in eyes with PED appears to be produced when there is coexistent CNV or there is anatomical change of overlying sensory retina. There was no correlation between size / retinal sensitivity of PED and hyperacuity defect.
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