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本文对31例62眼原发性黄斑变性主要类型锥(杆)细胞变性(7例14眼)、Starga-rdt—黄色斑眼底群(22例44眼)、卵黄样黄斑变性(2眼14例)进行固视及视力性质分析,摘要如下:1,原发性黄斑变性有中心固视和中心外固视两种固视状态。Stargardt—黄色斑眼底群中心外固视占其自身的绝大多数(90.91%);锥(杆)细胞变性中心外固视占其自身的50%。2,原发性黄斑变性中心固视与中心外固视的临界视力在0.2附近。3,在一部分早期Stargardt—黄色斑眼底群与中心性浆液性视网膜病变的鉴别诊断中,固视点检查有一定意义。4,固视点能判定原发性黄斑变性暗点性质。中心固视时无绝对中心暗点;中心外固视时有绝对中心暗点(白视标)。5,Stargardt—黄色斑眼底群的中心外固视点偏心度与其色觉障碍程度有关。偏心度大者色觉障碍较重。检查固视点可大致估计色觉情况。
In this paper, 31 cases of primary malignant primary macular degeneration (cone-rod) cell degeneration (7 cases of 14 eyes), Starga-rdt-yellow macular fundus (22 cases of 44 eyes), vitelliform macular degeneration (2 eyes of 14 cases ) For fixation and visual acuity analysis, abstracts are as follows: 1, primary macular degeneration with central fixation and external fixation of the two fixation state. External fixation of Stargardt-yellow speckles group accounted for the vast majority of its own (90.91%); cone (rod) cell degeneration center outside fixation accounted for 50% of its own. 2, the primary macular degeneration and central fixation of the critical visual acuity in the vicinity of 0.2. 3, in some early Stargardt-yellow speckles group and central serous retinopathy in the differential diagnosis, fixation point inspection has some significance. 4, fixation point can determine the nature of the primary macular degeneration dark spots. Center fixation without absolute center dark spots; Center outside the fixation when the absolute center dark spots (white as standard). 5, Stargardt - yellow spot fundus group center of external fixation eccentricity and its degree of color vision disorders related. High degree of eccentricity, color vision disorders heavier. Check the fixation point can be roughly estimated color vision.