منابع مشابه
Visual Acuity Thresholds in Amblyopes.
THE use of the visuscope in an amblyopic eye helps to determine the part of the retina used during uniocular fixation. However, it is also important to know from a clinical standpoint whether the fovea is inhibited through a peripheral or a central mechanism, and whether in a particular case, the resolving power of the rods or the cones is affected. Various authors have studied the behaviour of...
متن کاملFactors influencing visual outcome in anisometropic amblyopes.
AIM To identify which factors influence the final visual acuity in children with anisometropic amblyopia. METHODS A retrospective analysis of 112 children with anisometropic amblyopia, identified from examining all case notes of children who had failed preschool or school screening. RESULTS The age at presentation had no effect on the final visual outcome (p=0.804). Both the degree of refra...
متن کاملVisual acuity in insects.
The acuity of compound eyes is determined by interommatidial angles, optical quality, and rhabdom dimensions. It is also affected by light levels and speed of movement. In insects, interommatidial angles vary from tens of degrees in Apterygota, to as little as 0.24 degrees in dragonflies. Resolution better than this is not attainable in compound eyes of realistic size. The smaller the interomma...
متن کاملSymptomatic Rathke’s Cleft Cyst Presenting With Decreased Visual Acuity
Background and Importance: Symptomatic Rathke’s cleft cyst is a rare lesion that often presents without any symptoms. Case Presentation: We report a 40-year-old female with symptomatic Rathke’s cleft cyst located in the sellar and suprasellar region. She presented with visual disturbance, headache, weight gain, hypothyroidism and amenorrhea. The patient underwent surgery and ...
متن کاملCLINICAL SCIENCE Factors influencing visual outcome in anisometropic amblyopes
Aim: To identify which factors influence the final visual acuity in children with anisometropic amblyopia. Methods: A retrospective analysis of 112 children with anisometropic amblyopia, identified from examining all case notes of children who had failed preschool or school screening. Results: The age at presentation had no effect on the final visual outcome (p=0.804). Both the degree of refrac...
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ژورنال
عنوان ژورنال: British Journal of Ophthalmology
سال: 1963
ISSN: 0007-1161
DOI: 10.1136/bjo.47.3.153