PPT-CATARACTS

Jason Nguyen What are Cataracts A cataract is a clouding of the eyes natural lens lens protein denature which lies behind the iris and the pupil Light from the environment is disrupted as it passes through a lens with cataract. The initial progression of cataracts is slow and leads to vision loss The condition usually affects both the eyes but almost always one eye is affected earlier than the other If untreated cataracts can lead to blindness It is the most common cause Opacity in lens. Can be: Visually significant or not. Stable or Progressive. Congenital or Acquired. Unilateral or Bilateral. Partial or Complete. Please find your name and sit with your group.. When class starts, please decide who will be your group leader for the day.. The group leader will be the only person to bring answers to me. .. Pick someone to get a textbook for everyone in the group.. Who is at risk for cataract? suffering from certain diseases such as diabetes a cigarette smoker frequently exposed to sunlight How can I protect my eyes from cataracts? sunlight may help to slo World History. Libertyville High School. Nubia. / Kush. Area between . Second through Fifth . cataracts of Nile. Area between 2. nd. and 3. rd. cataracts = . Nubia. Area between 3. rd. and 5. th. A cause of blindness and is conventionally treated with surgery. Vision loss occurs because . opacification. of the lens obstructs light from passing and being focused on the retina. 3. rd. leading cause of preventable blindness. Down Syndrome. 1958 Jerome Lejeune and his team identified trisomy 21 (47 chromosomes-one extra chromosome 21 in cells) as cause of Down Syndrome. Only 2 years after it was discovered that the typical number of . Alyssa Kaeser. Color Blindness. The eye detects three colors: red, blue, and green. All other colors are a combination of varying degrees of these three colors.. Color blindness is a vision deficiency in which the perception of colors is different from one person than that of normal vision.. Types. . OF. . Cataract. . in . Pediatric. Patients. به نام خداوند جان وخرد. Cataracts in Pediatric . Patients . can be classified by:. . Age,. Etiology. , . Morphology. Cataracts. What . are Cataracts?. More than 2.5 Million Canadians have . cataracts. With age, the lens of the eye hardens and can become cloudy. Spots vary from small and cloudy to large and opaque. Can blur vision and interfere with performing normal visual tasks. The lens is a transparent, biconvex, crystalline structure placed between iris and the vitreous. . It has got two surfaces: the anterior surface is less convex (radius of curvature 10 mm) than the posterior (radius of curvature 6 mm).. 
 




  


  

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! Cataracts and cataract surgery We hope this information will answer some of your questions about cataract surgery. Here we will briefly explain what cataracts are and what the operation involves. If fact . that t. hanks to science, individual lives are longer, . healthier, easier,. . and fuller. . What is #ScienceSaves?. We hope this lesson helps your students understand how #ScienceSaves. !. Dr. Patricia Bath.