A lazy eye is a visual impairment characterized by a decrease in the quality of vision of one eye, when there is no active disease (if there was a disease it has already been treated) and without the ability to improve the quality of vision with glasses.
In order to see, cooperation between the eye and the brain is necessary. Light that penetrates the eye is absorbed on the retina where it becomes an electrical message that passes through the optic nerve. In the upper brain (cortex), the vision information is obtained and the brain translates it into an image, which we see. The development of the visual system depends to a large extent on the quality of the visual information transmitted. When the vision information is not of high quality, there is a weakening of the connection between the eye and the brain and a decrease in the ability to see. Initially the brain will suppress to some extent the information that comes from the eye and over time, the suppression will become more significant and therefore the ability to see is impaired.
This process will take place in the first two years of our lives in almost all cases.
A lazy eye is not a progressive phenomenon throughout our lives and does not cause blindness. She's not deteriorating without treatment, but she's not getting any better either. There is consensus among professionals that it is better to treat a lazy eye as soon as possible and recent studies show that it is possible to treat a lazy eye to some extent, at almost any age, even in adults.
Causes of lazy eye:
• Inward or outward strabismus – in these cases the eyes are not directed together on the same goal and therefore the messages transmitted to the brain from the eyes are not coordinated. The brain is not able to correctly interpret the evidence information and therefore suppresses the message that comes from one eye and uses information from the eye that provides the correct information.
• Anesomtrophy: large differences in break between two eyes (e.g. one short-sighted eye and the other – a wide-sighted problem).
• Lack of visual stimulation (such as: dropping an eyelid in one eye, cataracts in one eye).
- In most cases, the eye does not have lazy symptoms, so early childhood eye tests are very important.
Sometimes you can see in sufferers a kind of laziness:
- Blink or close one eye
• Movement serbol.
First of all, if there is an eye injury (such as: dropping an eyelid in one eye, cataracts) it is necessary to treat the injury. Then the follow-up can include:
• Wearing glasses to improve vision
- The blindfold is corrected with an eye tissue or eye drops to blur vision in the normal eye, in order to improve the connection between the brain and the "weak" eye.• Eye exercises to stimulate a lazy eye, with the aim of improving the connection between the eye and the brain and bringing it to work together with the normal eye.
As already mentioned, it is important and desirable to treat the phenomenon of a lazy eye at as young an age as possible, while the visual system develops.