Iijima H
Department of Ophthalmology, Yamanashi Medical University.
Nippon Ganka Gakkai Zasshi. 2000 Dec;104(12):943-59.
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.
自动静态视野计和光学相干断层扫描在黄斑疾病管理中的作用已被阐述。中心性浆液性脉络膜视网膜病变患者的暗点可用中心10度自动静态视野计进行评估。该疾病患者的视野缺损程度差异很大,多达10%的受试者平均偏差在-10 dB或更低。尽管视网膜色素变性是一种弥漫性视网膜营养不良,但处于视网膜色素变性中度进展期的眼睛应作为黄斑疾病进行处理,因为功能正常的视网膜局限于血管弓内。在平均随访期为5年的半数患者中,每年测量一到两次中心10度自动静态视野计,并使用平均偏差的单变量线性回归,可证明该疾病此阶段的进展性。激光手术或黄斑下手术后渗出性年龄相关性黄斑变性患者眼睛的功能恢复可用中心10度自动静态视野计进行评估。治疗干预后视力下降但平均偏差增加的眼睛也应进行评估。黄斑功能也可用颜色测试进行评估。一种新开发的颜色饱和度辨别测试应用于年龄相关性黄斑变性、视网膜色素变性和视锥营养不良患者。在视力损失程度相同的情况下,年龄相关性黄斑变性患者的色觉障碍程度低于视网膜色素变性或视锥营养不良患者。特发性息肉状脉络膜血管病变患者眼睛中橙红色结节的高度突出性质通过光学相干断层扫描的尺寸测量得以证实。突出程度大于浆液性色素上皮脱离患者的眼睛,这表明息肉状病变被包括布鲁赫膜在内的坚硬组织覆盖。在无黄斑无灌注或大量视网膜出血的黄斑水肿的视网膜分支静脉阻塞患者眼中,研究了自动静态视野计获得的旁中心视网膜敏感度与光学相干断层扫描测量的视网膜厚度之间的相关性。黄斑水肿导致的视网膜厚度增加与中央凹和旁中心区域的视网膜敏感度密切相关。对46例视网膜色素变性患者的89只屈光间质完整的眼睛进行研究,以使用光学相干断层扫描检测黄斑囊样水肿。46例患者中有6例(13%)的12只眼睛在黄斑区观察到囊样病变。一些经光学相干断层扫描证实有黄斑囊样水肿的眼睛在荧光素血管造影中未显示染料渗漏。囊样病变总面积的宽度与最佳矫正视力呈正相关,但中央凹中心的神经感觉视网膜厚度与之无关。成功修复的黄斑裂孔的光学相干断层扫描结果分为3组。U型眼睛的中央凹轮廓正常,有一层对应于光感受器外段的暗层。V型眼睛修复的神经感觉视网膜表面有一个切口,视网膜色素上皮上没有暗层。W型眼睛的神经感觉视网膜有缺损,视网膜色素上皮暴露。U型眼睛的视觉结果良好,而W型眼睛的视觉结果较差。