糖尿病视网膜病变英文课件.ppt

The normal structure of the eyeball;Terms;虹膜:iris , Irid/o--, Iridotomy虹膜切开术，iridectomy虹膜切除术，iridocyclitis虹膜睫状体炎 睫状体：ciliary body 脉络膜:choroid , Choroid/o--, choroidal脉络膜的，choroidoretinitis脉络膜视网膜炎 视网膜：retin/o retinitis视网膜炎，retinopathy视网膜病变,diabetic retinopathy糖尿病视网膜病变 瞳孔:pupil ,Pupill/o--,pupillomotor瞳孔运动的，pupillometer瞳孔计 玻璃体:vitreous , Vitre/o--, vitreous玻璃体的,Vitrectomy玻璃体切除术, Vitreretinal玻璃体视网膜的,Vitreretinopathy玻璃体视网膜病变 晶状体：lens 视盘：optic disk 黄斑:macular 视神经：optic nerve 中央凹:Fovea ;Diabetic retinopathy;Causes ;Causes;Causes;Symptoms ;Symptoms ;Symptoms ;symptoms;symptoms;Symptoms;Symptoms;Diabetic retinopathy is usually classified as early or advanced.;;;In the early stages of diabetic retinopathy, the walls of the blood vessels in your retina weaken. Tiny bulges protrude from the vessel walls, sometimes leaking or oozing fluid and blood into the retina. As diabetic retinopathy progresses, new blood vessels may grow and threaten your vision. ; As the condition progresses, the smaller vessels may close entirely and the larger retinal veins may begin to dilate（扩大） and become irregular in diameter（直径）. Nerve fibers in the retina may begin to swell. ;;;terms;;Advanced diabetic retinopathy. Proliferative diabetic retinopathy (PDR) is the most severe type of diabetic retinopathy. ;;;;;;;;Risk factors ;Risk factors;Risk factors;When to seek medical advice ;Complications;Vitreous hemorrhage. The new blood vessels may bleed into the clear, jelly-like substance that fills the center of your eye（vitreous）. Retinal detachment（视网膜脱离）. This may cause blurred vision, spots floating in your vision or severe vision loss.;Glaucoma. The new blood vessels may interfere with the normal flow of fluid out of the eye and cause pressure in the eye to build up. Blindness. Eventually, diabetic retinopathy can lead to complete vision loss. Glaucoma ：青光眼;Tests and diagnosis;Tests and diagnosis;;Treatments;Early diabetic retinopathy ;Advanced diabetic retinopathy;Treatm