Certified Ophthalmic Assistant COA With Correct Answers

Vitreous - Jelly-like substance that fills the middle of the eye. Eye Floaters - Tiny clumps of cells or other material inside the vitreous. These look like small specks, strings or clouds moving in your field of vision. Age-Related Macular Degeneration (AMD) - Leading cause of severe, irreversible vision loss in people over 60. It occurs when the small central portion of the retina, called the macula, deteriorates. People will lose their central vision but can still see out of their peripheral (side) vision. Dry AMD - When parts of the macula get thinner with age and drusen grow. You slowly lose central vision. There is no way to treat it yet. Quite common. Wet AMD - When new, abnormal blood vessels grow under the retina. These vessels may leak blood or other fluids , causing scarring of the macula. Less common but more serious, you lose your vision faster. Drusen - Tiny white or yellow particles that form under the retina. They seldom cause vision loss. But many (or very large) drusen can be a sign of AMD. Retina - Layer of nerve cells lining the back wall inside the eye. This layer senses light and sends signals to the brain so you can see. How is AMD diagnosed? - Amsler grid, dilated exam, fluorescein angiography or optical coherence tomography (OCT). Glaucoma - Increased pressure in the eye from too much fluid which can damage the optic nerve. Optic Nerve - A nerve located at the back of the eye that connects to the brain. It sends light signals to your brain so you can see. Aqueous humor - Clear liquid inside the front part of our eyes between the lens and the cornea. It nourishes the eye and keeps it inflated. Iris - Colored part of the eye. It controls the size of your pupil to let light into your eye.