The ability to see is dependent on the
actions of several components in and around the eyeball. When you look at
an object, light rays are reflected from the object to the cornea. The
light rays are bent, refracted and focused by the cornea, lens, and
vitreous onto the retina. The retina converts the light rays into
electrical impulses which are then transmitted through the optic nerve, to
the brain, where the image is translated and perceived as vision. Damage to
any one or more of these components may lead to vision loss. Damage to the
eye can be caused by chemical exposures and burns, corneal abrasions,
traumatic iritis (inflamed iris), orbital bone fractures, lacerations
(cuts), foreign bodies in the eye, and ultraviolet keratitis (a sunburn to
the cornea). Treatment depends on the extent of the damage, but may include
eye drops, stitches, and surgical intervention.
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an object, light rays are reflected from the object to the cornea. The
light rays are bent, refracted and focused by the cornea, lens, and
vitreous onto the retina. The retina converts the light rays into
electrical impulses which are then transmitted through the optic nerve, to
the brain, where the image is translated and perceived as vision. Damage to
any one or more of these components may lead to vision loss. Damage to the
eye can be caused by chemical exposures and burns, corneal abrasions,
traumatic iritis (inflamed iris), orbital bone fractures, lacerations
(cuts), foreign bodies in the eye, and ultraviolet keratitis (a sunburn to
the cornea). Treatment depends on the extent of the damage, but may include
eye drops, stitches, and surgical intervention.
