Title: Transient Blindness | Encyclopedia.com
Headings: Transient Blindness
Transient Blindness
Transient blindness
Definition
Description
Demographics
Causes and symptoms
Blood vessel blockage
QUESTIONS TO ASK YOUR DOCTOR
Damage to the eye
Nerve damage
Symptoms
Diagnosis
KEY TERMS
Treatment
Nutrition/Dietetic concerns
Prognosis
Prevention
Caregiver concerns
Resources
OTHER
ORGANIZATIONS

Content: Sudden vision loss can also be caused by psychological trauma. This condition is sometimes called hysterical vision loss. Damage to the eye
Infection and inflammation of various parts of the eye can also cause temporary vision loss, as can a transient increase in intraocular pressure (the pressure inside the eye). Disorders such as closed-angle glaucoma and the build up of drusen (pigment clumps) can also cause temporary or permanent vision loss. Temporary vision loss has also been reported in young children who have had mild head trauma with no loss of consciousness. Nerve damage
The optic nerve carries information from the retina to the brain, where the information is processed to create an image. Any event that damages the optic nerve or interferes with nerve impulse transmission can cause transient or permanent blindness. These events include inflammation of the optic nerve, compression of the optic nerve, temporary reduction in blood flow to the optic nerve, multiple sclerosis (nerve impulses are disrupted due to degeneration of the myelin sheath surrounding the nerve), tumors that infringe on the optic nerve, psychoactive drug use, and migraine headaches . Symptoms
About one-fourth of patients describe their transient vision loss as a dark curtain descending across their field of vision, while the majority describe it as a dimming, fogging, or blurring of vision. The sensation of a dark curtain obscuring the field of vision also characterizes a retinal detachment.