Individual differences in the shape of the nasal visual field.
Individual differences in the shape of the nasal visual field.
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DOI：
10.1016/j.visres.2016.04.001
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发表时间：
2017-12
期刊：
影响因子：
1.8
通讯作者：
Malinovsky, Victor E.
中科院分区：
文献类型：
--
作者：
Swanson, William H.;Dul, Mitchell W.;Horner, Douglas G.;Malinovsky, Victor E.
对103名年龄在21-85岁之间且无视觉障碍的志愿者的鼻视野形状进行了评估。视野检查采用对比敏感度受周边散焦和视网膜照度降低影响最小的刺激进行。在一项多中心前瞻性纵向研究中，对103名无眼病的志愿者各测试一只眼睛。外周偏离指数计算为外侧（鼻侧25°-29°）和内侧（固定8°）位置的对数对比敏感度之差。该指数的数值范围从0.01（外部灵敏度略大于内部灵敏度）到-0.7对数单位（外部灵敏度远低于内部灵敏度）。内部位置的平均灵敏度与偏差指数无关（R2 < 1%），而外部位置的平均灵敏度则与偏差指数无关（R2 = 38%，p < 0.0005）。年龄与该指数仅适度相关，每十年下降0.017个对数单位（R2 = 10%）。21名志愿者完成7-10次访视后的重测数据得出该指数的标准差为0.04 - 0.17 log单位，平均值为0.09 log单位。受试者之间的差异，周边偏差持续超过两年的纵向测试。外周偏离指数与24名志愿者中使用的其他三种外周刺激指数相关（R2为20% - 49%）。受试者之间视野形状的变化引起了对当前临床视野指数的关注，需要进一步的研究来开发改进的指数。
Between-subject differences in the shape of the nasal visual field were assessed for 103 volunteers 21–85 years of age and free of visual disorder. Perimetry was conducted with a stimulus for which contrast sensitivity is minimally affected by peripheral defocus and decreased retinal illumination. One eye each was tested for 103 volunteers free of eye disease in a multi-center prospective longitudinal study. A peripheral deviation index was computed as the difference in log contrast sensitivity at outer (25°–29° nasal) and inner (8° from fixation) locations. Values for this index ranged from 0.01 (outer sensitivity slightly greater than inner sensitivity) to −0.7 log unit (outer sensitivity much lower than inner sensitivity). Mean sensitivity for the inner locations was independent of the deviation index (R2 < 1%), while mean sensitivity for the outer locations was not (R2 = 38%, p < 0.0005). Age was only modestly related to the index, with a decline by 0.017 log unit per decade (R2 = 10%). Test-retest data for 21 volunteers who completed 7–10 visits yielded standard deviations for the index from 0.04 to 0.17 log unit, with a mean of 0.09 log unit. Between-subject differences in peripheral deviation persisted over two years of longitudinal testing. Peripheral deviation indices were correlated with indices for three other perimetric stimuli used in a subset of 24 volunteers (R2 from 20% – 49%). Between-subject variability in shape of the visual field raises concerns about current clinical visual field indices, and further studies are needed to develop improved indices.
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DOI：
10.1097/opx.0000000000000395
发表时间：
2014-11
期刊：
Optometry and vision science : official publication of the American Academy of Optometry
影响因子：
--
作者：
Swanson WH;Malinovsky VE;Dul MW;Malik R;Torbit JK;Sutton BM;Horner DG
通讯作者：
Horner DG
影响因子：
4.4
作者：
Hot, Aliya;Dul, Mitchell W.;Swanson, William H.
通讯作者：
Swanson, William H.
DOI：
10.1364/josaa.2.001508
发表时间：
1985-01-01
影响因子：
1.9
作者：
PELLI, DG
通讯作者：
PELLI, DG
影响因子：
1.7
作者：
Poggel, Dorothe A.;Treutwein, Bernhard;Strasburger, Hans
通讯作者：
Strasburger, Hans
影响因子：
4.4
作者：
Wall, M;Woodward, KR;Brito, CF
通讯作者：
Brito, CF