Quick Quiz: Aging eyes 1. Light rays entering the eye are refracted by the a. cornea. b. retina. c. sclera. d. none of the above. 2. True or false: Cone cells in the ...
Quick Quiz: Aging eyes 1. Light rays entering the eye are refracted by the a. cornea. b. retina. c. sclera. d. none of the above. 2. True or false: Cone cells in the retina are responsible for peripheral vision and the ability to see in dim light. 3. Photoreceptor cells in the eye a. relax and contract the lens. b. supply blood to the retina. c. convert light rays into nerve impulses. d. synchronize eye movement. 4. True or false: Astigmatism is caused by an irregularly shaped cornea. 5. Presbyopia occurs when a. light entering the eye focuses in front of the retina. b. light entering the eye focuses behind the retina. c. the lens gets less elastic with age. d. the cornea is irregularly shaped. 6. True or false: The only cure for a dense cataract is surgical removal. 7. True or false: Cataract patients require bed rest after surgery. 8. A postsurgical cataract patient should immediately contact her eye care provider if she experiences a. vision loss in the surgical eye. b. sudden eye pain not relieved with prescription medication. c. nausea or vomiting. d. all of the above.
