Night Blindness is a symptom of blurred vision at night or when in a dimly lit place. This can occur for several reasons, such as heredity, Vitamin A deficiency, myopia, cataracts, glaucoma, retinal or retinal dysfunction and the use of certain drugs, etc. The methods of treating this condition will vary depending on the cause.
Symptoms of night blindness
People with night blindness experience difficulty seeing in the dark. Including places with dim or insufficient light. This often occurs when the eyesight has to be adjusted from a very bright area to a dark or low light area, for example, changing the location from a sunny area to a dimly lit restaurant. Driving at night when the light is unevenly lit, etc.
Causes of night blindness
Night blindness can occur for several reasons:
- Eye problems such as nearsightedness, glaucoma, cataract, corneal bias, diabetes in the eyes and abnormalities in the retina or retina, etc. – Deficiency of vitamin A which contributes to the nourishes of eyesight and vision.
- Diseases or hereditary conditions, such as RP-type macular degeneration. Usher syndrome, etc.
- The use of glaucoma drugs can cause the pupil to shrink. Such as drugs in the colinergent group such as pylocarpene, etc.
However, some people are at greater risk of night blindness than the general population. Such as the elderly, those in food-deprived areas, People with cystic fibrosis, people who have problems absorbing fat in the body. People with high blood sugar levels and diabetics.
Diagnosis of night blindness
In the diagnosis of night blindness, Your doctor or ophthalmologist may inquire about your medical history and treatment. Including eye health check that there are abnormal or not. Additionally, your doctor may perform additional diagnostic tests to determine the cause of night blindness using a blood test for vitamin A and glucose levels.
Night blindness treatment
The treatment of night blindness will depend on the cause. Which can be done in several ways as follows:
- Use of corrective lenses, Your doctor may recommend glasses or contact lenses to help improve vision both during the day and at night.
- Eating vitamin A, In case the patient receives insufficient amount of vitamin A, Your doctor may recommend a diet high in vitamin A or take an appropriate amount of vitamin A supplements as recommended by your doctor.
- Cataract surgery, Doctors may recommend night blindness from cataract to undergo cataract surgery. Which is surgery to remove the cloudy eye lens To insert replacement intraocular lenses Help patients to see better.
Self care for night blindness
The patient may wear sunglasses or a wide-brimmed hat to avoid glare and improve eyesight when quickly changing locations from bright to dark. Also avoid driving at night. Even so, night blindness caused by disease or a genetic condition like RP-type macular degeneration is incurable.
Due to a genetic predisposition to the pigment on the retina or retina, it will not respond to the use of corrective lenses and surgery. But people with hereditary night blindness should always live with caution and avoid risk factors that may cause accidents such as driving at night.
Complications of night blindness
This is because of people with night blindness experience problems with their vision in the dark. Therefore, it may risk experiencing problems driving at night. This can be caused by the unevenness of the headlights and street lights along the way, so those with night blindness should avoid driving at night. To reduce the risk of accidents, Patients may seek help from family, friends, or take public transport instead.
Prevention of night blindness
The common person may reduce the risk of night blindness. Choose foods high in vitamin A, such as spinach, cabbage, milk, eggs, as well as fruits and vegetables that are orange or yellow, such as carrots, cantaloupe, pumpkin, and sweet potatoes. In addition, eating vitamins and minerals that contain free radicals may help prevent cataracts.
However, even hereditary night blindness cannot be prevented. But patients should control blood sugar levels and choose to eat properly to reduce the occurrence of such symptoms. As for those who are pregnant or planning to have a baby, they may consult a doctor to check for pregnancy abnormalities and determine the risks to plan for proper health care.