Structural changes in synapses related to visual functioning.
D000818:Animals; D002540:Cerebral Cortex / Q000166:cytology; D003624:Darkness; D005829:Geniculate Bodies / Q000166:cytology*; D000882:Haplorhini; D008027:Light; D008854:Microscopy, Electron; D051381:Rats; D012160:Retina / Q000166:cytology*; D013569:Synapses / Q000166:cytology*; D014793:Visual Cortex / Q000166:cytology