what causes nearsightedness is the error that makes far away objects look blurry. It happens when the shape of the eye makes the light focus in front of the retina.
If you are nearsighted, your doctor can prescribe for you eyeglasses or contact lenses to help you see clearly.
And this condition happens when your eyeball grows too long from front to back, or when you have problems with the shape of your cornea.
what causes nearsightedness
There are many of what causes nearsightdness and you will face some symptoms also for this condion and the most common symptoms of nearsightdness:
- Trouble seeing things that are far away
- Needing to squint to see clearly
- Eye strain because some people who are nearsighted get headaches, but this isn’t as common.
If you have nearsightedness, you may not notice some symptoms. That’s why it’s important to get regular eye exams with your doctor so he can make sure you’re seeing as clearly as possible.
People who have severe nearsightedness may also be at higher risk for other eye conditions, like when the retina is pulled away from its normal position.
Another causes of myopia
If you have nearsightdness or called also myopia, more than likely, at least one or both of your biological parents do, too. Eye experts are still unsure of the exact cause of the myopia, but believe it to be a mix of hereditary and environmental factors.
It’s possible that you can inherit the ability to be nearsightdness. If your lifestyle produces the right conditions, you’ll develop it. For example, if you use your eyes for a lot of work, like reading or working on a computer, you may develop myopia.
Myopia usually appears in childhood. Typically, the condition can worsen in early childhood but it may level off by the end of teen years.
The risk factors for myopia
There are many risk factors for nearsightedness and it may include:
- A family history of myopia.
- Spending a lot of time doing work as we mentioned, like reading or using screens like those on smartphones or computers.
- Not spending a lot of time outdoors.
The complications of myopia
Providers can treat nearsightedness with glasses , contact lenses or corrective surgery and tells you what causes nearsightedness, However, some cases of myopia can lead to more serious eye conditions, including:
- Cataracts.
- Glaucoma.
- Optic neuropathy.
- Neovascularization.
- Retinal detachment.
nearsightendness may make you more vulnerable to other more serious eye conditions. These include:
- Developing unwanted blood vessels in your eye.
- Glaucoma.
- Myopic optic neuropathy.
- Retinal detachment.
- Cataracts.
High nearsightdnesshappens when your child’s eyeballs are too long, or their corneas are too steep.
How is myopia diagnosed
Diagnosis and Tests may be different from person to person. An eye care provider can diagnose myopia using standard eye exams and will help you with the information you want to know like what causes nearsightedness. Providers usually diagnose the myopia in childhood, but it can also develop in adults because of the visual stress or diabetes.
How is nearsightdness treated
Glasses or contact lenses can correct the nearsightdness in children and adults. For adults only, there are several types of refractive surgeries that can also correct myopia.
With myopia, your prescription for glasses is a negative number. The higher is the number, the stronger your lenses will be. The prescription helps your eye to focus light on your retina, clearing up your distance vision.
Eyeglasses
The most popular way for the people to correct myopia is with eyeglasses. Depending on the degree of vision correction needed, you’ll wear eyeglasses either daily or only when you need it with distance vision. You may only need glasses for driving. Some kids with nearsightdness may only need glasses to play ball, watch a movie or view the chalkboard. Some people may need to wear the glasses constantly to see clearly. A single-vision lens will make distance vision clearer. But people over 40 who have myopia may require a bifocal to see clearly both near and far.
Contact lenses
Some people find out that their distance vision is sharper and wider with contact lenses. Ask your provider which type might be suitable for your nearsighdness level and other refractive errors.
Ortho-k or CRT
Some people with the mild myopia may be candidates for temporary corneal refractive contact lenses that you wear to bed to reshape your cornea temporarily, long enough to see for your daily activities.
LASIK
It is considered as laser-assisted in situ keratomileus procedure, the most common surgery to correct nearsightedness. In a LASIK procedure, your doctor uses a laser to cut a flap through the top of your cornea, reshape the inner corneal tissue and then drop the flap back into its place.
PRK
is short for “photorefractive keratectomy,” which is a type of laser eye surgery and it is used to correct mild or moderate nearsightedness. It may also correct farsightedness and astigmatism. In a PRK procedure, your ophthalmologist cuts off the front surface of your cornea and uses a laser to reshape the surface, which flattens and allows light rays to focus on your retina. Unlike LASIK, the ophthalmologist doesn’t cut a flap, and your cornea will regrow its top layer in 1 to 2 weeks. PRK is better for people with corneas that are thinner or have a rough surface because it disrupts less corneal tissue than a comparable LASIK surgery.
Intraocular lens implant
This allows your ophthalmologist to surgically insert a new lens in your eye, replacing your natural one. This procedure happens before a cataract develops.
Read more: Eye exercises and their effectiveness in reducing eye strain
Can myopia be prevented
You can’t prevent myopia because it’s a condition that tends to run in families and it depends on genetics, but you may be able to lower the risk of having nearsightedness in some ways.
You can use eye drops and vitamins like Clear Crystal Vision
In the end, we have discussed in this article what causes nearsightedness and what are the symptoms you might have, how you can prevent it.