How common is cone-rod dystrophy?

How common is cone-rod dystrophy?

Cone-rod dystrophy is estimated to affect 1 in 30,000 to 40,000 individuals.

What is supernormal rod response?

Cone dystrophy with supernormal rod response (CDSRR) is a retinal disorder characterized by reduced visual acuity, color vision defects, and specific alterations of ERG responses that feature elevated scotopic b-wave amplitudes at high luminance intensities.

Is cone dystrophy hereditary?

Cone-rod dystrophies can be inherited in an autosomal recessive, dominant, X-linked or mitochondrial pattern. Leber congenital amaurosis (LCA) is a rare genetic eye disorder. Affected infants are often blind at birth or lose their sight within the first few years of life.

How do you test for Cone-Rod Dystrophy?

An ophthalmologist is able to diagnose someone with cone/cone-rod dystrophy based on the presenting symptoms, clinical examination and performing an electro-diagnostic test of the retina called electroretinogram (ERG). The ERG is used to assess the overall function of the photoreceptor cells in the retina.

Is there treatment for cone-rod dystrophy?

Treatment. Currently, there is no treatment to stop a person with cone-rod dystrophy (CRD) from losing their vision. However, there may be treatment options that can help slow down the degenerative process, such as light avoidance and the use of low-vision aids.

Is cone rod dystrophy a disability?

Retinitis pigmentosa is a disease which causes degeneration in your eyes, specifically in the rods and cones of the retina. It is generally inherited and can cause severe impairment to your vision. In the worst cases, it can cause blindness.

What does cone dystrophy do?

Cone-rod dystrophy (CRD) is a group of inherited eye disorders that affect the light sensitive cells of the retina called the cones and rods. People with this condition experience vision loss over time as the cones and rods deteriorate.