VISUAL DEPRIVATION CAUSES MYOPIA IN CHICKS WITH OPTIC-NERVE SECTION
VISUAL DEPRIVATION CAUSES MYOPIA IN CHICKS WITH OPTIC-NERVE SECTION
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DOI：
10.3109/02713688709034870
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发表时间：
1987-08-01
影响因子：
2
通讯作者：
WALLMAN, J
中科院分区：
文献类型：
--
作者：
TROILO, D;GOTTLIEB, MD;WALLMAN, J
限制在视网膜某个区域的形觉丧失只在该区域产生近视和轴向伸长。我们想知道，这种由视觉刺激的存在或不存在对眼睛生长的控制是否可能完全发生在眼睛内部。新生雏鸡视神经切断后，戴上遮盖器，剥夺一半视网膜的形视，玻璃体腔延长和近视均局限于剥夺区。切断视神经但不戴遮光器的雏鸡眼睛比正常的小，伴有严重的远视。这些结果表明，两种不同的机制可能控制眼睛的生长，一种在眼睛内，另一种在大脑中。
Deprivation of form vision restricted to a region of the retina produces myopia and axial elongation only in that region. We asked whether this control of eye growth by the presence or absence of visual stimuli might take place entirely within the eye. Chicks with neonatal optic nerve section, wearing an occluder that deprived one half of the retina of form vision, had vitreous chamber elongation and myopia both restricted to the deprived region. Chicks with optic nerve section but without occluders had eyes smaller than normal with severe hyperopia. These results suggest that two different mechanisms may control eye growth, one within the eye and the other in the brain.