Electroretinography (ERG) is a diagnostic test that measures the electrical responses of the eye's light-sensitive cells, the rods and cones, and other cells in the retina. It is crucial for diagnosing various retinal diseases and understanding the functional status of the retina in response to light stimuli.

Electroretinography

A diagnostic test is a medical procedure performed to determine the presence or absence of a disease or condition in a patient, often guiding treatment decisions. It is crucial for early detection, monitoring, and management of diseases, ensuring timely and appropriate medical interventions.

Diagnostic Test

Electrical responses

Light-sensitive cells

Rods and cones are the two types of photoreceptor cells in the retina of the eye, responsible for converting light into neural signals. Rods are highly sensitive to low light and are crucial for night vision, while cones are responsible for color vision and function best in bright light conditions.

Rods And Cones

The retina is a light-sensitive layer at the back of the eye that converts light into neural signals, which are then sent to the brain for visual recognition. It is crucial for vision and contains photoreceptor cells called rods and cones, which are responsible for low-light and color vision, respectively.

Retina

Retinal diseases encompass a range of conditions that affect the retina, the light-sensitive tissue at the back of the eye, potentially leading to vision impairment or blindness. Early detection and treatment are crucial in managing these diseases, with advancements in medical imaging and therapies offering promising outcomes.

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