眼底病、眼与全身病备份PPT课件

The retinae The term retina derives fromthe Latin word rete,meaning"net.“●Two functions:to transduce information froman optical image into electricalsignalsto process certain features ofthe visual world from thephotoreceptor signals and relaythis information to the brain viathe optic nerve视网膜的组织学结构及功能1.Inner limiting membrane神经上皮2.Layer of optic nerve fibersOptic nervVEP3.Layer of panglion cellsPatternERG色素上皮4.Inner plexiform layerAmocrine celisvitamin A metabolism and5.Inner nuclear layerBipolar collsregeneration6.Outer plexiform layerHorizontalcells--phagocytosis and7.Outer nuclear layerERGdegradation of shed outerhotoreceptor时8.Outer limiting membranesegment tips9.Layer of rods and cones--light absorptionSupporting cel作of Miller10.Retinal pigmentepithelium--secretion of the matrixEOG11.Bruch's membrangsurrounding thephotoreceptor inner andouter segments,---active transport ofmaterialsT.12.2视网膜的血液供应系统视网膜有独特的双重玻璃体玻璃体腔血液供应系统：视网顶内界顶脉络膜血管--供应外层内层视网雁视网膜视网膜血管-供应内层视网膜外层视网腹视网膜色索上皮脉絡預