Your eyes are your windows to the world, allowing you to see shapes and colors and identify objects during everyday activities. However, the function and integrity of your eyes can change over time, leading to the need for prescription eyewear or LASIK surgery. While only your ophthalmologist can determine if vision correction is necessary for you, you can find out more about your visual acuity by learning how your eyes work. Check out this guide to eye anatomy to learn more.
Parts of the Eye
Your eye is approximately one inch in diameter and features several different components. The iris is the pigmented or colored part of your eye around your pupil, which is the black circular opening that allows light into your eye. Your cornea is the clear lens that covers your iris and pupil and is responsible for reflecting light onto your retina. The white portion of your eye is known as the sclera, while the clear layer of tissue that covers the front of your eye is the conjunctiva.
Functions of the Eye
When light enters your pupil, it is reflected off of your cornea and onto your retina, which is an area on the back of your eye that contains light-sensing cells. These cells convert light into electrical impulses, which are then sent to the brain via the optic nerve, where they are translated into visual representations.
Common Conditions of the Eye
There are a number of problems that may interfere with your ability to see clearly. These include myopia (nearsightedness), hyperopia (farsightedness), and astigmatism, all of which involve having a cornea with an abnormal shape. Other eye conditions that may impact your vision include presbyopia, cataracts, glaucoma, diabetic retinopathy, and macular degeneration.
If you are searching for an experienced ophthalmologist or LASIK eye surgeon in New York City, look no further than Dr. Mark Hornfeld with Vista Laser Vision. Give our office a call at (212) 580-8881 or visit our website for information on Wavefront LASIK, glaucoma treatment, and multifocal lenses.