Organ: Lens


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Lens: Clear structure at the front of the eye
Lens: The lens is at the front of the eye and it focuses light on the retina.1
Introduction: The lens lies behind the iris and the pupil . It works much like a camera lens. It focuses light onto the retina at the back of the eye, where an image is recorded. The lens also adjusts the eye's focus, letting us see things clearly both up close and far away.

The lens is made of mostly water and protein. The protein is arranged in a precise way that keeps the lens clear and lets light pass through it.2

The lens is the part of the eye that helps focus light on the retina. The retina is the eye's light-sensitive layer that sends visual signals to the brain. In a normal eye, light passes through the lens and gets focused on the retina. To help produce a sharp image, the lens must remain clear.3


Condition count: 4 ; see list below.
Organ types: Eye (102)
Main condition: Lens conditions
Organs: all organs

Diseases list: The following list of medical conditions have 'Lens' or similar listed as an affected body part in our database:

A

  • Astigmatism ... lens

    D

  • Diabetic Eye Disease ... lens
  • Diabetic Lens Osmosis ... lens

    L

  • Lens disorders ... lens

    Footnotes:
    1. excerpt from Keep your eyes healthy: NIDDK
    2. excerpt from Are You At Risk for Cataract: NEI
    3. excerpt from Facts About Cataract: NEI

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