Vision - Contact Lens Glossary by Letter
# A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Radial Keratotomy- Commonly referred to as RK; a surgical procedure designed to correct myopia (nearsightedness) by flattening the cornea using radial cuts.
Refraction- A test to determine the refractive power of the eye; also, the bending of light as it passes from one medium into another.
Refractive Errors- Imperfections in the focusing power of the eye, for example, hyperopia, myopia, and astigmatism.
Refractive Power- The ability of an object, such as the eye, to bend light as light passes through it.
Retina- A layer of fine sensory tissue that lines the inside wall of the eye. The retina acts like the film in a camera to capture images, transforms the images into electrical signals, and sends the signals to the brain.
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