Ahromaziya (achromatopsia) - a disease characterized by severe impairment of color perception, in which the patient sees the world in black and white.
The disease is related to hereditary diseases, which is characterized by an autosomal recessive pattern of inheritance.

Sometimes, however, the disease has acquired the character and develops due to damage to the optic nerve or the central portion of the retina. Very rarely, this pathology may occur against the background of glaucoma.
Most often the disease is detected in childhood.

Causes

To lead the development of achromatopsia various violations of cone body of the device.

Symptoms

This pathology is characterized by a triad of symptoms:

• Violation of color (total non-perception of red, green, blue shades) - the patient sees everything in black and white
• Severe reduced visual acuity
• Photophobia

In this disease, patients reported that they see better at twilight than in daylight.
There is such a thing as "incomplete ahromaziya" - it is a condition in which color perception is reduced (but not completely lost) for all three primary colors. Patients with this pathology have higher visual acuity.

Establishing diagnosis

In the presence of the child must always be above symptoms appear ophthalmologist.
Diagnosis is based on the study of color vision by Rabkin polychromatic tables, or by using a special method - electroretinography.

Treatment

Existing treatments for this disease are ineffective. Major doctors' efforts are aimed at improving visual acuity, decreased photophobia (by wearing special glasses).

The social side of the issue

In general, children with achromatopsia can learn in regular schools, but must notify teachers about the presence of disease in the child.
Patients with this disease are not allowed to drive vehicles (drivers may not work), and they are not taken for work and for which it is necessary to distinguish between colors.