Myopia is a refractive error more
commonly called nearsightedness. A refractive error is when the eye does not
bend or refract the light at the proper angle. It is hard to see distant
objects as they appear blurry, such as a highway sign, but it’s easy to read a
book up close.
Refractive errors occur when the
shape of the eye doesn’t allow light to focus correctly on the retina. If a
person is nearsighted your eyeball is too long from front to back or your
cornea is too curved or there are problems with the shape of the lens. Images
focus in front of the retina (the light-sensitive part of the eye). Instead of
directly right on the retina.
Myopia is a pretty common
disorder that affects an estimated 40% of Americans. Myopia can be corrected with
eyeglasses, contacts, or refractive surgery.
Symptoms of my Myopia may
include:
- blurry vision when
looking at distant objects
- The need to screen
or partially close the eyelids to see clearly
- Headaches caused
by eyestrain
- Difficulty seeing
while driving, especially at night this is called night myopia
- Eye fatigue
Nearsightedness is often first
detected during childhood and is commonly diagnosed between the early school
years through the teens. A child with myopia will exhibit symptoms like:
- persistently squinting
- The need to sit
closer to the TV, movie screen, or the front of the classroom
- The child seems to
be unaware of distant objects
- Blinks excessively
- Seems to rub his
or her eyes frequently
There are three types of myopia:
- Simple-when an
otherwise, healthy eye is less than 6 diopters
- High-is when the
patient exceeds 6 diopters
- Degenerative- This
is relatively rare, about 2% of Americans. It is considered to be a
progressive condition. People with this form have a significant risk of
retinal detachment, cataracts, and abnormal blood vessel growth.
#eyegotcha
#PittsburghEyeCare
#PittsburghOptometrist
Sources:
Image: www.webmd.com
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