Osuobeni E P
College of Applied Medical Sciences, King Saud University, Riyadh, Kingdom of Saudi Arabia.
Optom Vis Sci. 1992 Jul;69(7):550-5. doi: 10.1097/00006324-199207000-00007.
Previous experiments that have compared monocular vernier acuity in amblyopic, monocularly blind, and normal binocular subjects have been confined to the center of the retina. Based on brain changes that accompany the early disruption of form vision in one eye, monocularly blind subjects (that is, those who have completely lost the ability to process form vision in one eye) and amblyopic subjects are expected to have better vernier acuity in their normally functioning eye than subjects with normal binocular vision. Results from such studies have been ambiguous. This experiment was set up to study monocular vernier acuity in the central and peripheral retina of the three groups of subjects mentioned above. The results show that, at the center, monocularly blind subjects have the best vernier acuity followed by the amblyopic subjects and, finally, the normal binocular subjects have the worst acuity. In the peripheral retina, no significant differences were found between the three groups. A possible explanation has been provided for this finding.
以往比较弱视、单眼失明和正常双眼受试者单眼游标视力的实验仅限于视网膜中央。基于单眼视力早期受损时伴随的脑部变化，预计单眼失明受试者（即那些完全丧失一只眼睛处理形态视觉能力的人）和弱视受试者在其功能正常的眼睛中比正常双眼视力的受试者具有更好的游标视力。此类研究的结果一直不明确。本实验旨在研究上述三组受试者视网膜中央和周边的单眼游标视力。结果表明，在中央，单眼失明受试者的游标视力最佳，其次是弱视受试者，最后，正常双眼受试者的视力最差。在周边视网膜中，三组之间未发现显著差异。针对这一发现提供了一种可能的解释。
