What is blindness?
Although blindness is a kind of illness that is commonly seen in older drivers, however, it may affect any person of any age due to some other vision problems. Clinical night disease, unlike its name, does not mean that the person with it is generally blind at night. A person who has an illness during the night is difficult to distinguish between objects, as well as holes around light sources at night. Clinical night can be very dangerous if a person has to drive in the dark at night behind the car's steering wheel. The high-speed cars and road lights can disrupt the correct vision of people with blindness and prevent them from driving safely.
Causes of blindness night
There are a number of eye problems, vitamin deficiencies and some chronic diseases that may affect night vision and night vision. These factors are:
As the age of the pupil grows, our eyes do not expand in the dark as they expanded, and thus the amount of light entering our eyes decreases. In addition, the cornea loses its transparency gradually as a result of aging, and as a result, the aura observed around the objects expands, and the contrast between the colors of the objects decreases, making it difficult to distinguish objects from one another during the night and in the dark.
Pregnancy occurs as a result of aging, and it may be harder to concentrate and adapt the eye to light changes. It makes it more difficult for the elderly to drive at night or driving in the rain.
Glucose is a type of eye-related disease in which the intraocular pressure increases and as a result, the peripheral vision of the patient is affected. Reducing the peripheral vision causes the person to stay away from the correct observation of what is happening around him.
Cataracts are cloudy that are placed on the lens and disturbs the field of vision. Cataract can be difficult to observe when it comes to the night as a result of the more observation of halo and holes around light sources, such as high-end cars.
This disease is a disorder caused by diabetes in the back of the eye. Retinopathy may result in loss of most of the vision. It is the main cause of blindness blindness between the ages of 20 and 64 years.
6. Retinal sputum:
It is a rare genetic disorder in which a dark pigment grows to the eye's retina and makes the person look like a tunnel. It usually affects people under the age of 30, and night vision worsening is one of its early symptoms.
7. Nutrient deficiency:
Lack of vitamin A and zinc can cause blindness. Although this is rare, vitamin A deficiency in the diet can affect the person's vision. Zinc helps to absorb vitamin A to compensate for this deficiency.
8. Exposure to sunlight:
Sunlight, if not properly protected from the eyes, can temporarily affect night vision for two days a day. The use of sunglasses that protect UVA and UVB rays can prevent sun exposure from intermittent night blindness.
9. Complications of laser eye surgery:
Patients undergoing LASIK surgery can rarely have night vision impairment. The most common problem with these people is that at night, they see holes or holes around light sources.
Treatment of night blindness
Improving night vision in people with blindness depends on the root cause of the disease. If the cause of blindness is cataract, cataract surgery can improve the overall vision of the person at night. But if diabetic retinopathy is the cause of blindness, it should control the disease by controlling blood glucose levels using medication and dietary changes, and preventing loss of vision.
If you also have trouble distinguishing between objects at night, or you can see halo around light sources at night, it's best to leave the problem with a specialist doctor. These symptoms may indicate a more serious problem and, if promptly, it is possible to detect and treat the disease promptly.