D.2-3 yrs 10.What causes cataract?( A.Excessive reading B.Keeping eyes closed C.Ultraviolet lightexposure D.None of the above 11.In what stage of diabetic retinopathy can bleeding occur?( A.proliferative retinopathy B.mild nonproliferative retinopathy C.moderate nonproliferative retinopathy D.severe nonproliferative retinopathy 12.Early signs of diabetic retinopathy include all of the following except() A.leaking blood vessels and any vision changes. B.retinal swelling or macularedema. C.pale,fatty deposits on the retina--signs of leaking blood vessels. D.inability to keep eyes open. 13.To prevent progression of diabetic retinopathy,people with diabetes should control their levels of ( A.blood sugar. B.blood pressure C.blood cholesterol. D.all of the above 14.People with which type of retinopathy can reduce their risk of blindness with treatment and follow-up care?( A.moderate nonproliferative retinopathy B.proliferative retinopathy C.severe nonproliferative retinopathy D.mild nonproliferative retinopathy 3 D. 2-3 yrs 10. What causes cataract? ( ) A. Excessive reading B. Keeping eyes closed C. Ultraviolet light exposure D. None of the above 11. In what stage of diabetic retinopathy can bleeding occur? ( ) A. proliferative retinopathy B. mild nonproliferative retinopathy C. moderate nonproliferative retinopathy D. severe nonproliferative retinopathy 12. Early signs of diabetic retinopathy include all of the following except ( ) A. leaking blood vessels and any vision changes. B. retinal swelling or macular edema. C. pale, fatty deposits on the retina -- signs of leaking blood vessels. D. inability to keep eyes open. 13. To prevent progression of diabetic retinopathy, people with diabetes should control their levels of ( ) A. blood sugar. B. blood pressure. C. blood cholesterol. D. all of the above 14. People with which type of retinopathy can reduce their risk of blindness with treatment and follow-up care? ( ) A. moderate nonproliferative retinopathy B. proliferative retinopathy C. severe nonproliferative retinopathy D. mild nonproliferative retinopathy