REFRACTIVE ERRORS

What are refractive errors?

Refractive errors occur when the shape of the eye prevents light from focusing directly on the tissue layer (retina). The length of the eyeball (longer or shorter), changes in the shape of the cornea or aging of the lens will all cause refractive errors.

The tissue layer (cornea) and lens bend (refract) incoming light rays so that they focus exactly on the retina at the back of the eye.

What are the different types of refractive errors?

The common types of refractive errors are near-sightedness, farsightedness,astigmatism and presbyopia.

Nearsightedness (also referred as myopia) could be a condition where objects up appear clearly, whereas objects distant seem bleary. 

With nearsightedness, light comes to focus in front of the retina instead of on the retina.

Farsightedness (also known as hyperopia) may be a common sort of refractive error wherever distant objects could also be seen more clearly than objects that are close to. However, peoples experience farsightedness differently. 

Some people might not notice any issues with their vision, particularly when they are young.  For people with significant farsightedness, vision may be blurry for objects at any distance, near or far.

Astigmatism may be a condition within which the eye doesn't focus light equally onto the retina, the light sensitive tissue at the back of the eye. 

this may cause pictures to look foggy and stretched

Presbyopia is an age-related condition within which the power to focus up close becomes harder. 

Because the eye ages, the lens can no longer change shape enough to allow the eye to focus close objects clearly.

Who is at risk for refractive errors?

Presbyopia affects most adults over age 35.Other refractive errors will have an effect on each kids and adults. People who have parents with certain refractive errors may be more likely to get one or more refractive errors.

What are the signs and symptoms of refractive errors?

Blurred vision is the most common sign of refractive errors. Some Other symptoms may include the following:

 •  Haziness

•  Headaches

•  Eye strain

•  Double vision

•  Glare or halos around bright lights

•  Squinting

How are refractive errors diagnosed?

An eye care professional will diagnose refractive errors throughout a comprehensive dilated eye examination. People with a refractive error typically visit their eye care professional with complaints of visual discomfort or blurred vision. However, some people don’t recognize they aren’t seeing as clearly as they could.

How are refractive errors corrected?

Refractive errors can be corrected with, contact lenses, eyeglasses or refractive surgery.

Eyeglasses are the simplest and harmless way to correct refractive errors.

Your eye care professional can prescribe acceptable lenses to correct your refractive error and provides you optimal vision.

Contact Lenses work by changing into the primary refractive surface for lightweight rays coming into the eye, inflicting a lot of precise refraction or focus. 

In several cases, contact lenses provide clearer vision, a wider field of vision, and larger comfort. they're a secure and effective choice if fitted and used properly. it’s important to clean your hands and clean your lenses as educated so as to cut back the danger of infection.

If you have certain eye conditions, you will not be able to wear contact lenses. Discuss this matter along with your eye care professional.

Refractive Surgery aims to vary the form of the tissue layer for good. This variation in eye form restores the focusing power of the eye by permitting the light rays to focus exactly on the retina for improved vision. 

There are many sorts of refractive surgeries. Your eye care professional will assist you decide if surgery is option for you.

For more details about eye health, visit...

www.nelivigieyehospital.com