Association between Interpupillary Distance and Fusional Convergence-Divergence Amplitudes
نویسندگان
چکیده
منابع مشابه
Horizontal fusional amplitudes. Evidence for disparity tuning.
The region of retinal disparity that is effective in maintaining binocular alignment of the eyes was investigated by measuring the horizontal fusional amplitudes for fixation targets consisting of a small central cross to which peripheral lines having various disparities were added. It was found that the addition of peripheral targets significantly facilitated binocular alignment, but only if t...
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Great discrepancies are often encountered between the distance fixation and the near-fixation esodeviations and exodeviations. They are all attributed to either anomalies of the AC/A ratio or anomalies of the fusional convergence or divergence amplitudes. We report a case with pseudoconvergence insufficiency and another one with pseudoaccommodative convergence excess. In both cases, conv./div. ...
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Our ability to perceive many aspects of the human face is so acute that some would propose that we possess specialised face-processing mechanisms. One example of this exquisite performance is our ability to discriminate differences in the lateral separation of the eyes in pairs of otherwise identical facesösee Kemp et al (1990, Perception 19 531 ^ 543). However, we have found that our ability t...
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This study aims at determining the mean value of the ophthalmic anthropometrics parametar-IPD (Interpupillary distance) and the mean value of NC/D (Near convergence/distance) in 300 subjects aged 5 to 60 years. The influence of IPD on the NC/D ratio in the same subjects will also be investigated. The investigation showed that the mean value of IPD is 60.5 +/- 2.4 cm, and the mean value of NC/D ...
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ژورنال
عنوان ژورنال: European Eye Research
سال: 2022
ISSN: ['2757-8135']
DOI: https://doi.org/10.14744/eer.2022.25744