Vitreous hemorrhage means bleeding into the vitreous, the clear gel that fills most of the inside of the eye between the lens at the front and the retina at ...

A vitreous cyst is a small, round or oval sac filled with fluid that floats inside the vitreous (the clear gel that fills the back of your eye). Think of it ...

Vitreopapillary Traction Syndrome is a condition where the vitreous—the clear gel that fills the back of the eye—pulls abnormally on the optic nerve head, also ...

Vitreomacular Traction Syndrome means the clear gel that fills the eye—the vitreous—is pulling on the macula, which is the sharp-seeing center of the retina. ...

Visual vertigo / visually-induced dizziness means you feel dizzy, off-balance, or motion-sick mainly when your eyes see a lot of motion or busy patterns. Your ...

Visual Variant of Alzheimer’s Disease is a form of Alzheimer’s that mainly damages the back parts of the brain (the occipital, parietal, and occipito-temporal ...

Visual symptoms of Parkinson’s disease are problems with how the eyes move, how comfortable the eyes feel, and how the brain handles visual information. They ...

Visual snow is a neurological visual phenomenon where you see countless tiny, flickering dots—like “TV static”—across your entire field of view, all the time, ...

Visual neglect—often called hemispatial neglect or simply neglect—is a problem of attention and awareness, not a problem of eyesight itself. A person with ...

Vici syndrome is a very rare genetic condition that starts early in life and affects many organs at the same time. The condition is usually caused when a child ...

Vestibular disease rehabilitation is a therapeutic program that uses specific exercises and education to retrain how your balance system works. Your balance ...

Vertical gaze palsy means a person cannot move both eyes normally up or down on command. The problem is not in the eyeball muscles themselves—it is usually in ...

Vertebrobasilar Insufficiency (VBI) is reduced blood flow to the back of the brain that can cause dizziness, imbalance, double vision, slurred speech, ...

Vernal keratoconjunctivitis is a long-lasting (chronic), allergy-type inflammation of the front surface of the eye and the inner side of the eyelids. It mostly ...

The vasculature of the orbit means all blood vessels that bring blood to and take blood away from the tissues inside the eye socket. This includes the arteries ...

Varicella Zoster Virus (VZV) is the virus that causes chickenpox the first time you catch it and shingles when it wakes up again later in life. After ...

Varicella Zoster Virus (VZV) stromal keratitis is inflammation and injury in the middle layer of the cornea (the clear front window of the eye) caused by the ...

Valsalva retinopathy is a sudden bleed in front of the retina (a preretinal hemorrhage) that happens after an intense, brief strain—like a hard cough, ...

Uveitis–Glaucoma–Hyphema (UGH) syndrome is a problem that can happen after cataract surgery when an artificial lens or another device inside the eye rubs ...

Hyphema means blood inside the front chamber of the eye (the space between the cornea and the iris). The blood comes from tiny torn blood vessels in the iris ...