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      Automatic Static Threshold Perimetry Is Useful for Estimating the Effects of Laser Photocoagulation on Diabetic Maculopathy


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          Focal photocoagulation was performed on 18 eyes in 18 diabetes patients; a visual acuity test, fluorescein angiography and automated static threshold perimetry by Octopus automated static perimetry (program 31) were conducted before and 1, 3 and 6 months after krypton laser photocoagulation. Central field sensitivity and total loss were measured by automated static threshold perimetry. Group A (13 eyes) had a total loss of less than 150 dB. In these subjects, mild fluorescein leakage was detected within the area of the vascular arcade. In group B (5 eyes) with a total loss of greater than 150 dB, diffuse fluorescein leakage was also detected outside the vascular arcade. The central field sensitivity was reduced in 2 eyes of group B. The total loss worsened in 8 eyes of group A (61.5%) and 5 eyes of group B (100%). Inspection of photographs gave the impression that the degree of fluorescein leakage and the area of the avascular zone on fluorescein angiography accorded with total loss, thus suggesting that total loss reflects visual functions better than visual acuity or central field sensitivity. Therefore, automated static threshold perimetry appears to be a useful method for estimating visual functions after photocoagulation in diabetic maculopathy patients.

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          Author and article information

          Ophthalmic Res
          Ophthalmic Research
          S. Karger AG
          August 1998
          12 June 1998
          : 30
          : 4
          : 207-215
          Department of Ophthalmology, National Defense Medical College, Tokorozawa, Japan
          55477 Ophthalmic Res 1998;30:207–215
          © 1998 S. Karger AG, Basel

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          Page count
          Figures: 7, References: 22, Pages: 9
          Original Paper

          Vision sciences,Ophthalmology & Optometry,Pathology
          Octopus automated static perimetry,Total loss,Krypton laser photocoagulation,Diabetic maculopathy,Central Sensitivity


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