Anisometropia Symptoms, Causes, Treatment, Glasses

Anisometropia is an ocular condition in which person have different or unequal refractive power of both eyes. Any one eye may have near sightedness i.e. myopia, far sightedness i.e. hyperopia or may have both conditions at a time which is termed as antimetropia. When difference in power touches up to 2 diopters or exceed, it is considered as a strong indication of Anisometropia. This difference will interfere in normal binocular vision. People with Anisometropia feel difference in vision i.e. things appear smaller in one eye and bigger in 2nd eye. People also said that they have a blurry vision.

Anisometropia Symptoms

Anisometropia have many signs and symptoms. Sometimes it leads to further conditions like

• Amblyopia (in this condition low refractive power leads to lack of visual ability via blocking visual stimulation. Due to this blockage, messages are not transferred to brain and people are not able to see clear images.)
• Strabismus (in this condition patient is not able to align both eyes and as a result patient cannot focus on a single point in space.
• Diplopia which is also known as double vision. Diplopia results in light sensitivity, dizziness, tiredness, headache, eye strain and last but not least nausea.

Anisometropia Causes

     
It is said that people with normal vision can also have almost 5% difference in refractive power of each eye. People who have difference in refractive power in the range of 5 to 10 % experience uneven vision which is known as Anisometropia. Some of the other causes include defect in the eye from childbirth. Unequal size of both eyes is another leading cause of Anisometropia. Children with 6 to 18 years old are more in number with Anisometropia. Having identical vision is a rare state which is not commonly present. Brain do not accept visual signals from weak eye and results in Anisometropia.

Anisometropia Treatment

Treatment of Anisometropia is required as early as it is diagnosed. if it is left untreated, then brain will completely depend on eye presenting clear image and as a result other eye will start getting weaker. Anisometropia can be treated in many ways. If there is a minute difference in refractive power, it can be managed easily via corrective lenses, contact lenses or corrective surgery. Selection of treatment option depends upon severity of condition. Each eye need a different prescription of contact lenses or corrective lenses. Those people with greater difference cannot be cured with glasses.

Anisometropia Glassess

Use of glasses is the 1st step in correcting Anisometropia. If proper treatment is required, then glasses or contact lenses should be worn all the time consistently. Brain activity is also required for complete treatment. Glasses used in Anisometropia should be of different lens with different refractive power according to eyes. Sometimes brain is forced to use the weaker eye for vision by covering stronger eye with a band this results in improvement of vision. Some physicians consider glasses a bad option for Anisometropia because of its magnification effect. As it can cause considerable difference in image size.