Nearsightedness
The medical term for nearsightedness is “myopia.” Myopia is when an individual can see objects clearly the closer they are, and blurry the further away they are, which is due to the length of one’s eye.
...read more The medical term related to cornea starts with the prefix 'kerat-'.Keratotomy is a surgical incision of Cornea. Its a procedure designed to make the cornea of the eye flattened, then the optical power of the eye is decreased to correct vision.
Techniques regarding keratotomy include
- Flap Procedures
- Photoablation Procedures
- Corneal Incisions Procedures
Contents
Myopia or Near-sightedness
Myopia (or nearsightedness) is an eye disorder which is easily corrected with eyeglasses, contact lenses or surgery.
People who have myopia or nearsightedness have difficulty seeing distant objects, but can see objects that are near clearly. For example, a person who is nearsighted may not be able to make out highway signs until they are just a few feet away.
Causes of Myopia
People who are nearsighted have what is called a refractive error. This means that the light rays bend incorrectly into the eye to transmit images to the brain. In people with myopia, the eyeball is too long or the cornea has too much curvature, so the light entering the eye is not focused correctly. Light rays of images focus in front of the retina, the light-sensitive part of the eye, rather than directly on the retina, causing blurred vision. Myopia runs in families and usually appears in childhood. Sometimes the condition plateaus, or sometimes it worsens with age.
Symptoms of Myopia
People who are nearsighted often complain of headaches, eyestrain, squinting or fatigue when driving, playing sports, or looking more than a few feet away.
How Is Myopia Diagnosed
Myopia can be easily diagnosed using standard eye exams given by an eye doctor.
Health tips to avoid Near Sightedness
The College of Optometrists in Vision Development offers suggestions that may help reduce or prevent myopia:
- Use good posture when reading -- sit up straight, and don't cause strain on your eyes by holding the book too close or too far away.
- Make sure there is always proper lighting when reading or working.
- Be sure to take frequent breaks and rest your eyes when reading or working on a computer, or any other activity that may strain your eyes.
- If you do notice yourself squinting or having difficulty seeing objects at a distance, talk to your eye care professional.
Treatment
Glasses, contact lenses, or refractive surgery can correct myopia. With myopia, your prescription for glasses or contact lens is a negative number, such as -3.00. The higher the number, the stronger your lenses will be. Refractive surgery can reduce or even eliminate your dependence on glasses or contact lenses. The most common procedures for myopia are performed with a laser.
