Normal vision vs. Cone-Rod Dystrophy
Overview
Cone dystrophy is a general term used to describe a group of rare inherited eye disorders that affect the cone cells of the retina, leading to a variety of symptoms such as decreased visual acuity, impaired color perception (dyschromatopsia), and increased sensitivity to light (photophobia). The exact prevalence of cone dystrophy is unknown, but most sources estimate that it affects approximately 1 in 30,000 individuals in the general population.
Types of CRD
There are two main forms of cone dystrophy: stationary and progressive. In stationary cone dystrophy, symptoms tend to remain stable and are usually present at birth or early childhood. In progressive cone dystrophy, symptoms slowly worsen over time, with the age of onset, progression, and severity varying greatly among individuals, even those with the same type of cone dystrophy.
Overview
Cone dystrophy is a general term used to describe a group of rare inherited eye disorders that affect the cone cells of the retina, leading to a variety of symptoms such as decreased visual acuity, impaired color perception (dyschromatopsia), and increased sensitivity to light (photophobia). The exact prevalence of cone dystrophy is unknown, but most sources estimate that it affects approximately 1 in 30,000 individuals in the general population.
Types of CRD
There are two main forms of cone dystrophy: stationary and progressive. In stationary cone dystrophy, symptoms tend to remain stable and are usually present at birth or early childhood. In progressive cone dystrophy, symptoms slowly worsen over time, with the age of onset, progression, and severity varying greatly among individuals, even those with the same type of cone dystrophy.
Overview
Cone dystrophy is a general term used to describe a group of rare inherited eye disorders that affect the cone cells of the retina, leading to a variety of symptoms such as decreased visual acuity, impaired color perception (dyschromatopsia), and increased sensitivity to light (photophobia). The exact prevalence of cone dystrophy is unknown, but most sources estimate that it affects approximately 1 in 30,000 individuals in the general population.
Types of CRD
There are two main forms of cone dystrophy: stationary and progressive. In stationary cone dystrophy, symptoms tend to remain stable and are usually present at birth or early childhood. In progressive cone dystrophy, symptoms slowly worsen over time, with the age of onset, progression, and severity varying greatly among individuals, even those with the same type of cone dystrophy.