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  • Title: [Macular diseases--application of automated static perimetry and optical coherence tomography].
    Author: Iijima H.
    Journal: Nippon Ganka Gakkai Zasshi; 2000 Dec; 104(12):943-59. PubMed ID: 11193945.
    Abstract:
    The usefulness of automated static perimetry and optical coherence tomography in the management of macular diseases has been described. Scotomata in eyes with central serous chorioretinopathy could be evaluated with central 10-degree automated static perimetry. The degree of visual field defects in eyes with the disease varied greatly with mean deviation of -10 dB or less in as many as 10% of the subjects. Although retinitis pigmentosa is a diffuse retinal dystrophy, eyes with a moderately advanced stage of retinitis pigmentosa should be managed as a macular disease, because the functioning retina is confined within the vascular arcade. The progressive nature in this stage of the disease could be demonstrated with a central 10-degree automated static perimetry measured once or twice a year and the use of univariate linear regression of mean deviation, in half of the patients with a mean follow-up period of 5 years. Functional recovery in eyes with exudative age-related macular degeneration after laser surgery or submacular surgery could be evaluated with central 10-degree automated static perimetry. Eyes with increased mean deviation in spite of reduced visual acuity after therapeutic intervention should also be evaluated. Macular function could also be evaluated using a color test. A newly developed color saturation discrimination test was applied to patients with age-related macular degeneration, retinitis pigmentosa, and cone dystrophy. The degree of dyschromatopsia was less in eyes with age-related macular degeneration than in those with retinitis pigmentosa or cone dystrophy with the same level of acuity loss. The highly protrusive nature of the orange-red nodule in eyes with idiopathic polypoidal choroidal vasculopathy was demonstrated with dimensional measurement with OCT. The degree of protrusion was greater than in eyes with serous pigment epithelial detachment, which suggests that the polypoidal lesion is covered with rigid tissues including Bruch's membrane. Parafoveal retinal sensitivity obtained with automated static perimetry was studied in correlation with retinal thickness measured using OCT in eyes with branch retinal vein occlusion showing macular edema without macular non-perfusion or massive retinal hemorrhages. The increased retinal thickness due to macular edema is closely correlated with retinal sensitivity both at the fovea and in the parafoveal area. Eighty-nine phakic eyes of 46 patients with retinitis pigmentosa patients were studied to detect cystoid macular edema using OCT. Cystoid lesions were observed in the macula in 12 eyes in 6 (13%) of 46 patients. Some eyes with OCT-proven cystoid macular edema did not show dye pooling in the fluorescein angiogram. The width of the total area of cystoid lesions was positively correlated with best-corrected visual acuity but the thickness of the neurosensory retina at the center of the fovea was not. OCT findings of successfully repaired macular holes were categorized into 3 groups. Eyes with U-type showed a normal foveal contour and a dark layer corresponding to the outer segment of photoreceptors. Eyes with V-type showed a notch in the surface of repaired neurosensory retina without a dark layer on the retinal pigment epithelium. Those with W-type showed a defect of the neurosensory retina, where the retinal pigment epithelium was exposed. The visual results were excellent in eyes with U-type, but poor in those with W-type.
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