God has distinguished man from other living beings with many senses and characteristics that make him different from them, including the grace of sight, which is one of the important senses in the human body, which may be subjected to either total loss of sight or weakness of sight or long-sighted, and this is one of the most problems The elderly are among the most vulnerable groups, and the most common among them are the age-related effects on all organs, including the sense of sight, and children may become minors Consider from They are too young to wear glasses.
When a person is weak, he or she may lose a large proportion of his or her eyesight and may not be able to see and distinguish between distant objects correctly. This is the problem that many people around us have. The condition may develop and worsen gradually if it is not treated properly. the correct.
Causes of low vision
The disease of visual impairment has many causes of infection:
- The spread of viruses and germs that may be exposed to the eye, transmitted through air contaminated with viruses or when direct contact with a person infected with infectious eye infections, which may be transmitted through the use of special purposes of the eye may not be used by more than one person such as: kohl pens, or Contact lenses that cause the transmission of germs and viruses from the infected person to the healthy person immediately after use.
- At age and after the age of forty; during this period, the person is very vulnerable to the weakness and vision problems due to eye infections and loss of flexibility.
- Excessive use of devices such as television, computer, and mobile devices, which release harmful rays of the eye, which cause the daily and continuous use of the problem of impaired vision due to fatigue and increased pressure on the eye.
- Genetic factors and family history with visual impairment.
- Lack of attention to the quality of food intake and health of the eyes; as there are many types of vegetables and fruits that help to maintain the flexibility of the eye and non-hardening.
- Injury to a person with chronic diseases such as diabetes.
Symptoms of poor vision
There are many symptoms that appear on the person when the incidence of low vision, including:
- Feeling pain in the eye area, which may be accompanied by continual scratching of the eye.
- Work on bringing the thing closer to looking at it like a book.
- The appearance of bulges in the eye and eyelids.
- High eyelash rate for normal range.
- The inability to look at the light.
- The feeling of seeing is unclear and tends to be stupid.
- Inability to differentiate between colors.
- Frequent tears and secretions of the eyes.
- Feeling of spots when looking at light.
- The inability to see objects close to the person that may collide with them.
- Difficulty in reading and writing.