Causes and prevention of vision loss

Loss of vision refers to total or partial loss of vision. Depending on the cause, it may occur suddenly or gradually, in one eye or in both. Certain types of vision loss are temporary or reversible. Vision loss is relatively common. Indeed, vision problems are among the top ten disabilities in adults and among the most common disabilities in children. Experts predict that cases may increase sharply by 2050 due to rising rates of diabetes and other chronic diseases, as well as the rapid aging of the population.

There are many possible causes of partial or total vision loss, especially medical problems, injuries, migraines, and aging. This article examines the different types of vision loss, the causes of sudden or gradual vision loss, treatments, and methods of adjustment.

Types of vision loss

Loss of vision is the term that refers to the loss of the ability to see correctly. There are different types of vision loss, and these can be caused by various diseases or conditions, especially:

– loss of central vision, or difficulty seeing things at the center of vision.

– – loss of peripheral vision, or difficulty seeing things in the corner of the eye

– loss of vision, which results in an inability to see anything

– Emeraldry, which results in difficulty seeing in low light conditions

– blurred or hazy vision: the person has the impression that his vision is blurred or that he is looking through a filter.

– One may also be unable to see shapes or see only shadows.

Causes of sudden vision loss

Sudden vision loss is a loss of vision that occurs over a period of a few seconds or minutes to several days. It can be caused by various ailments.


Many people with migraines have visual symptoms known as migraines. About 25 to 30% of migraines have symptoms of visual aura. For some, these are zigzag lines, flickers, or spots. For others, it is tunnel vision, total vision loss, or left or right vision loss. These visual disturbances are often, but not always, accompanied by a headache. It tends to last less than an hour and generally lasts 10 to 30 minutes. Some disappear after a few seconds. The treatment of migraine may consist of taking painkillers and the rest in a dark room, in the light part of the bright light and the forces of the wires.


Keratitis, or inflammation of the cornea, is a condition that can occur more frequently in people who wear contact lenses than in those who do not.

Keratitis can be caused by an infection or an injury to the eye. Symptoms include blurred vision, pain, sensitivity to light, or loss of vision. This condition is temporary. A doctor will treat her with prescription drugs.


Also known as conjunctivitis, conjunctivitis can lead to vision loss. Conjunctivitis is an infection or inflammation of the conjunctiva. It can cause vision problems, redness, pain or vision problems. Conjunctivitis is temporary and usually goes away on its own. In case of bacterial conjunctivitis, des gouttes ophtalmiques antibiotiques can help Reliable source.

Eye fatigue

If a person stares at a dangling screen for a long time, they may begin to lose their sight and feel that the objects they are watching are blurry. This phenomenon is usually temporary and can be resolved by moving away from the screen and allowing the eyes to rest. The 20-20-20 rule can help prevent eye fatigue. This means that a person looks away from the screen every 20 minutes, to look at something 20 meters away, for 20 seconds.

Corneal abrasion

An eye injury can also lead to sudden vision loss. Depending on the severity of the injury, it can be temporary or permanent and treatment can vary accordingly. An ophthalmologist is a consultant advisor to assess the severity of the injury.

Causes of gradual vision loss

Vision loss is not always sudden. It can sometimes occur over a long period of time.

Age-related macular degeneration

Age-related macular degeneration (AMD) is an eye disease that can affect a person’s central vision. DMLA is one of the main causes of viewing adults 50 years and older. It can occur very gradually or fairly quickly. Many people start to see a blurred area near the center of their vision, whose size may increase over time.


Glaucoma is a group of diseases that damage the optic nerve at the back of the eye. Glaucoma symptoms can occur and progression in a person can ignore what is achieved until they undergo an eye examination. It can manifest in one eye or in both. Without treatment, glaucoma can eventually lead to blindness, starting with peripheral vision. Doctors use different types of glaucoma treatment, especially medications (usually eye drops), laser treatment, and surgery. Treatment cannot reverse the damage already caused.

Diabetic retinopathy

Diabetic retinopathy is a condition that causes a pair of eyesight and blindness in people with diabetes. It affects the blood vessels in the retina, which is the layer of light-sensitive tissue at the back of the eye. Anyone with diabetes, whatever it is, can get diabetic retinopathy. It is important for a diabetic person to have regular eye exams for early detection. Symptoms are not always noticeable in the early stages. Treatment may involve medication, laser treatment, or surgery. In 90% of cases, diabetes-related blindness can be prevented. In the absence of treatment, diabetic retinopathy may progress to total and permanent blindness.

When consulting a doctor

Many types of visual impairment can be prevented through early diagnosis and prompt treatment. There may be no need to worry, but it is best to seek professional advice.

If the loss of vision symptoms are accompanied by the following symptoms, a person should consult a doctor immediately:

– intense headache

– difficulty speaking

– sagging face

– loss of muscle control on one side of the body

– intense pain in the eyes

These symptoms may be signs of a stroke or other serious medical condition.


If a person suffers a sudden loss of vision, they should be treated as a medical emergency and consult a doctor immediately. To diagnose vision loss, a doctor may perform an eye examination. He can project a light into the person’s eyes or ask them to read the letters of a picture to measure vision. The diagnosis may include a neurological examination for the eye and deer function tester.

How to deal with vision loss

It can be difficult to cope with vision loss, especially if it is permanent. There are certain things that a person can do to help them cope with the situation, and there are government services that can help.

The means of dealing with partial or total vision may be the following:

– reorganize the house to facilitate navigation

– apply for social security assistance

– speech therapy

– learn braille

– use a guide dog


It is not always possible to prevent vision loss, but people can take steps to ensure their eye health.

People can practice good eye health by taking the following measures:

– Rest your eyes

Every 20 minutes, pause looking at a screen and look at something at about 20 meters for 20 seconds.

Wear safety goggles

Wear safety goggles or goggles when performing certain activities, such as sports, construction work, or home repairs.

Wear sunglasses

Choose sunglasses that protect your eyes from 99 to 100% UVA and UVB rays.

Have regular eye exams, know the risk of eye disease, eat well and quit smoking can also help protect your eyes.

Vision loss can have many causes. Temporary causes include migraine and conjunctivitis. Medical conditions, such as diabetic retinopathy and AMD, can lead to permanent vision loss. Often there are no warning signs or symptoms of eye disease. Early diagnosis and treatment of eye problems are the best ways to keep your eyes healthy, and it is important to consult a doctor in case of vision loss.

* Press the effort to transmit health knowledge in a language accessible to all. In NO CASE, the information given cannot replace the opinion of a health professional.

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