Retinal, bound to proteins called opsins, is the chemical basis of visual phototransduction, the light-detection stage of visual perception (vision). Some microorganisms use retinal to convert …

Nov 24, 2025 · The retina is a layer of tissue in the back of your eye. It senses light and sends images to your brain. Learn about retinal disorders and treatments.

Oct 1, 2024 · "Retinal is the strongest version of vitamin A that you can get over the counter without a prescription, whereas retinol is weaker and can be tolerated better for patients with …

Mar 8, 2024 · Retinal diseases vary widely, but most of them cause visual symptoms. Retinal diseases can affect any part of your retina, a thin layer of tissue on the inside back wall of the …

Retinal diseases are those that affect your retina, or the back layer of your eye. Light goes into your eye through your cornea and through the opening at the center of your iris called the pupil.

The retina is the transparent, light-sensitive structure at the back of the eye. The cornea and lens focus light onto the retina. The central area of the retina, called the macula, contains a high …

Dec 15, 2025 · Retinal products can treat a variety of skin concerns like uneven texture and clogged pores, and can address discoloration, acne and wrinkles, according to our experts.

Sep 19, 2024 · One of the most important parts within the eye is the retina. What Is the Retina? The retina is the layer of cells positioned at the back of your eyeball. This layer senses the …

Nov 10, 2021 · Retinal problems are conditions that affect the retina and often cause difficulty with vision. Early detection is essential to prevent and delay the progression of most retinal disorders.

Dec 5, 2025 · There are two types of cells in the retina: cones for color and rods for low light and peripheral vision. Seek emergency care if you experience blindness, double vision, or sudden …