INCREASED DRIFT IN AMBLYOPIC EYES
INCREASED DRIFT IN AMBLYOPIC EYES
复制标题
DOI：
10.1136/bjo.64.1.7
复制
发表时间：
1980-01-01
影响因子：
4.1
通讯作者：
STARK, L
中科院分区：
文献类型：
--
作者：
CIUFFREDA, KJ;KENYON, RV;STARK, L
关于弱视眼漂移增加的存在，有相互矛盾的报道。单独弱视或斜视对眼漂移的个体影响尚未进行系统研究。采用光电法记录无斜视弱视、间歇性斜视弱视和持续性斜视弱视患者单眼和双眼注视时的水平眼位。增加的漂移幅度（高达3.5 °）和速度（高达3.0 °/弱视眼单眼固视时发生率为100%。虽然在无斜视的弱视中发现75%的时间和50%的时间在恒定斜视弱视中发现漂移增加，但在间歇性斜视中仅发现20%的时间。弱视漂移在本质上可以是产生误差的或校正误差的。在16例患者中的任何一例中，优势眼单眼固定或双眼固定期间均不存在漂移增加。弱视，而不是斜视，显然是注视漂移明显增加的必要条件。漂移幅度的增加，而不是速度，可能会对弱视眼的视力产生不利影响。
There are conflicting reports on the presence of increased drift in amblyopic eyes. The individual effects of either amblyopia or strabismus alone on ocular drift have not been systematically investigated. A photoelectric method was used to record horizontal eye position during monocular and binocular fixation in patients having amblyopia without strabismus, intermittent strabismus or constant strabismus amblyopia. Increased drift amplitude (up to 3.5.degree.) and velocity (up to 3.0.degree./s) occurred in amblyopic eyes during monocular fixation. While increased drift was found 75% of the time in amblyopia without strabismus and 50% of the time in constant strabismus amblyopia, it was found only 20% of the time in intermittent strabismus. Amblyopic drift may be either error-producing or error-correcting in nature. Increased drift was not present during monocular fixation with the dominant eye or during binocular fixation in any of 16 patients. Amblyopia, and not strabismus, apparently is a necessary condition for the presence of markedly increased fixational drift. Increased drift amplitude, but not velocity, may adversely affect visual acuity in the amblyopic eye.