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S. Takada, C. Matsumoto, E. Arimura, S. Hashimoto, S. Okuyama, Y. Shimomura; Influence of media opacities on SAP, SWAP, HRP, FDP and flicker perimetry. . Invest. Ophthalmol. Vis. Sci. 2004;45(13):4330.
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© ARVO (1962-2015); The Authors (2016-present)
Purpose: We investigated the influence of artificial media opacities and cataracts on standard automated perimetry (SAP), short–wavelength automated perimetry (SWAP), high–pass resolution perimetry (HRP), frequency doubling perimetry (FDP) and flicker perimetry. Methods: Ten eyes of 10 normal subjects and 20 eyes of 27 cataract patients were tested using SAP, SWAP, HRP, FDP and flicker perimetry. Six kinds of occlusion diffuser were used for normal subjects in order to simulate the media opacities. In SAP, stimulus sizes 1, 3 and 5 were also used for normal subjects. In FDP, FDT and Matrix were used for normal subjects. In flicker perimetry, CFF values of octopus1–2–3 and 311 were used for normal subjects. Results: Using SAP, SWAP, HRP and FDP, the differential light sensitivity of SAP, SWAP, HPR sensitivity and FDP sensitivity significantly decreased depending on the degree of the density of the occlusion diffusers. In SAP, the differential light sensitivity was significantly affected by media opacities using smaller target sizes. However, the CFF values of the flicker perimetry were not affected by all occlusion diffusers. In cataract patients, perimetric threshold values were also significantly affected depending on their corrected visual acuity except for flicker perimetry. Conclusions: All perimetric methods which change the contrast of the test target for detecting the threshold were affected by media opacities. Resolution perimetry was also affected by media opacities. The CFF values of the flicker perimetry were the least affected by media opacities.
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