Which term is the clear tissue that covers the front of the eye?

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Multiple Choice

Which term is the clear tissue that covers the front of the eye?

The clear tissue at the front of the eye is the cornea. It forms the transparent window that lets light into the eye and provides most of the eye’s focusing power by bending light as it enters. The cornea is distinct from other eye structures: the sclera is the white, opaque outer layer; the conjunctiva is a thin membrane that covers the sclera and lines the lids; and the orbit is the bony socket that houses the eye. The cornea is avascular and stays clear thanks to the tear film and a smooth, moist surface. In practice, conditions that affect the cornea—like dryness, irritation, or injury—can blur vision and make navigation with a visual impairment more challenging, which is important to consider in orientation and mobility planning.

The clear tissue at the front of the eye is the cornea. It forms the transparent window that lets light into the eye and provides most of the eye’s focusing power by bending light as it enters. The cornea is distinct from other eye structures: the sclera is the white, opaque outer layer; the conjunctiva is a thin membrane that covers the sclera and lines the lids; and the orbit is the bony socket that houses the eye. The cornea is avascular and stays clear thanks to the tear film and a smooth, moist surface. In practice, conditions that affect the cornea—like dryness, irritation, or injury—can blur vision and make navigation with a visual impairment more challenging, which is important to consider in orientation and mobility planning.

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