The term “Vision loss” represents losing the ability to see objects transparently or clearly without using contact lenses or glasses. The things seem to be blurry. Vision loss may develop suddenly or gradually, and you may experience partial or complete vision impairment.
Vision loss is the prevailing global problem. National Health Interview Survey in 2018 estimated that 32.2 million adults and older Americans are experiencing vision loss dilemmas. Of these, 18.5 million females and 13.7 million males are getting significant vision loss.
Experts predict that the number of vision loss patients increases due to the increase in the risk of diabetes and another serious disease.
However, there are many causes of sudden and gradual vision loss, some of them are described below.
1. Glaucoma
Glaucoma represents a group of eye problems that cause damage to your eye’s optic nerve, present at the back of the eye. The optic-nerve transmits visual information to your brain. That causes vision loss and ultimately may lead to blindness. Open-angle glaucoma, or (OAG) is the most common type of glaucoma prevailing in the U.S.
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The signs of glaucoma may not appear early; therefore, a regular examination is mandatory. The symptoms of glaucoma can be;
- Blurry vision
- Loss of peripheral vision
- Eye pain
- Red-eye
- Headaches
2. Migraine
People who have migraine feel visual symptoms called migraine aura. Analysis indicates that almost 25-30% of migraine patients experience visual aura symptoms.
The people may experience the symptoms;
- Seeing zig-zag lines
- Seeing sparkles or spots
- Complete loss of vision
- Tunnel vision
- left or right side vision loss
Some people may feel a headache that lasts almost an hour or may persist for 10 to 30 minutes, and some may get relive after a few seconds.
This can be cured by taking painkillers and spending more time indoors, away from bright and harsh light and loud sounds.
3. Eyestrain
Eye strain is a temporary vision problem that can be corrected by relaxing and resting eyes. This happens when you do massive work on a computer, stare at a screen for a long time, and don’t blink your eyes. Thus, you begin to lose vision and objects appear blurry or unclear.
You can get rid of eyestrain by applying the 20-20-20 rule, which means you should look here and there after every 20-minutes and look 20-feet away from your screen for 20 seconds.
4. Corneal Abrasion
Corneal abrasion happens when your eye cornea gets a superficial scratch or abrasion on its surface. This corneal abrasion can cause sudden vision loss. Your cornea can get scratched when a hard solid object comes in contact with your cornea.
You may experience the symptoms;
- Tearing
- Redness
- Headache
- Pain
- A gritty feeling in the eye
- Sensitivity to light
5. Keratitis
Keratitis, is also known as inflammation of the eye cornea, happens in people who wear contact lenses. This may occur when you don’t wash your hands before applying the contact lenses; germs are present on your hands. Germs may enter your eyes and cause inflammation. You may feel the signs of
- Blurred vision
- Pain
- Vision loss
- Sensitivity to light
Other eye diseases such as; Macular degeneration, Cataracts, and Diabetic Retinopathy are major issues which can develop gradual vision loss.
Conclusion
Vision loss also involves the top 10 disabilities in adults and is the most common cause of prevailing disabilities in children. Many causes of vision loss in children, adults, and older people. Some of them can cause sudden vision loss, and others cause gradual vision loss. Luckily, different treatments are available that can treat your vision problem.
Reference
https://www.medicalnewstoday.com/articles/vision-loss#gradual-vision-loss
