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What is lazy eye?
Laziness is a condition called vision or lazy eye characterized by a significant decrease in visual acuity unilaterally or bilaterally.
Vision occurs through coordinated work of the eye and brain. Normally, images in the outside world come to our eyes as neural stimuli. If for some reason the image in both eyes cannot be converted to a single image, a weaker warning reaches the brain from one eye. This results in lower vision. In the lazy eye, the eyes are completely normal anatomically.
How often is lazy eye?
Eye laziness occurs in 2-3 out of 100 children. Without early detection and treatment, it is the most common visual problem in young adults. Eye laziness is a serious and financially burdensome social problem that affects the child psychosocially in life, job selection, school and friendship relationships, loss of the healthy eye for any reason. Therefore, early diagnosis is very important.
Vision screening is performed in kindergartens in developed countries in order to diagnose laziness early. In our country, these screenings should be started to be widely used at an early age.
What can be done to protect children from laziness?
The earlier the lazy eye is caught, the more successful the treatment and the shorter the time. Therefore, even if there is no complaint, routine eye examination is required between 6 months to 1 year, 3-5 years and around 7 years. In addition, pediatric ophthalmologist should be consulted without any delay from birth if the following symptoms occur.
• Strabismus, premature birth, whitening of eyes, tremors in eyes
• Look at objects closely or sideways
• Don't stare at the shoulder or raise the chin
• Eye rubbing, blinking, stretching
• Squinting or closing an eye
• Wearing glasses or laziness in the family
What are the types and causes of lazy eye?
1- Strabismus lazy eye: Since strabismus eyes cannot look parallel, laziness develops in the sliding eye. As it is too late to take it to an ophthalmologist, treatment becomes difficult and even irreversible and permanent. Strabismus is the cause of laziness.
2- Anisometropic lazy eye: High refractive error in one eye or both eyes, ie situations requiring glasses cause laziness.
3- Deprivation (deprivation) lazy eye: Laziness develops if treatment is delayed in diseases such as ptosis, low valve, cataract, corneal opacities, intraocular hemorrhage. Lazy eye can only be treated after actual discomfort.
4- Organic Eye Laziness: 10 percent is encountered, it is difficult to return to see. Optic nerve hypoplasia occurs in the presence of coloboma (innate or underdeveloped congenital eye nerve), myelinated nerve fibers.
How is lazy eye treated?
The basis of the treatment of lazy eye is to strengthen the neural connections with the brain by operating the lazy eye.
• Firstly, eye examination is performed and glasses are given if necessary.
• The intact eye is closed for a certain period of time and the lazy eye is referred to work. This work can be done at home or in the form of glass work (in which case the child must have a certain age and level of vision).
• In infrequent closure-resistant children, the pupil in the intact eye is enlarged and blurred vision is created.
Eye lazy treatment is a treatment that requires child, family and physician coordination. The best results are obtained in the first 4 years. Although it is a challenging period for both the family and the child, the results of which are resistant to closure of the children between the ages of 4-7 years are quite satisfactory. Eye laziness treatment, which was previously abandoned at the age of 10, can be continued until the age of 15 in the light of recent studies.