Starting at 12:01 a.m. PT Sunday, some AAO.org products and services may be unavailable as we make website improvements. We expect to complete the work by late Sunday evening.
Jelly-like substance that fills the middle of the eye. Also called the vitreous humor.
Read an overview of general eye anatomy to learn how the parts of the eye work together.
Get ophthalmologist-reviewed tips and information about eye health and preserving your vision.
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Museum of the Eye