Diplopia, binocular
Diplopia, binocular: Double vision (diplopia) that is only evident when looking through both eyes and disappears if one eye is closed or covered. The condition is caused by misalignment of the eyes by the extraocular muscles (the muscles around the eyeball that control gaze). This may be due to strabismus (misalignment of the eyes from birth), neurologic damage to the extraocular muscles (as from a brain abscess, stroke, head trauma or brain tumor), diabetes, myasthenia gravis, Graves disease, or trauma to the eye muscles, as from a fracture of the orbit.
Read Also:
- Diplopia, monocular
Diplopia, monocular: Double vision (diplopia) in only one eye. The double vision persists when the other eye is covered. Monocular diplopia can be caused by astigmatism (abnormal curvature of the front of the cornea), keratoconus (cone-shaped cornea), pterygium (thickening of the conjunctiva over the cornea), a cataract, dislocation of the lens, a mass in the […]
- Dipper
Dipper: A person in whom there is the normal nocturnal fall (dip) in blood pressure. The opposite of a dipper is a nondipper.
- Diprosopus
Diprosopus: Two-faced conjoined twins (incompletely separated identical twins). The twins have almost complete fusion of their bodies with one set of limbs. Part or all of the face is duplicated. The condition usually results in stillbirth. The ancient two-faced Mexican figurines known as the “pretty ladies of Tlatilco” are now thought to represent diprosopus. It […]
- Dipsophobia
Dipsophobia: An abnormal and persistent fear of drinking alcohol. Sufferers of dipsophobia experience undue anxiety about addiction to alcohol and the effect this addiction can have on their body. (However, their abstinence from alcohol certainly should not be criticized.) “Dipsophobia” is derived from the Greek “dipsa” (thirst) and “phobos” (fear). “Dipsa” is also used to […]
- Dipsosis
Dipsosis: Excessive thirst; overwhelming desire for water or another liquid. Dipsosis may occur when the amount of water in the body falls below normal. Any activity that causes perspiration can deplete the body’s water supply and trigger dipsosis. So can fever, anxiety, sunburn and heat exhaustion. Other causes of water loss and dipsosis include the […]