Conditions list medically reviewed by George Krucik, MD, MBA
A head injury is an injury to your brain, skull, or scalp. All head injuries should be treated seriously and assessed by a doctor. Get the facts about 6 major types.
A stroke is a medical emergency that requires immediate medical care. Learn about the signs of a stroke and what to do.
Hypoglycemia, or low blood sugar, is a potentially dangerous condition that's most common in people with diabetes. Learn what causes it and how to prevent it.
A cataract is a dense, cloudy area that forms in the lens of the eye. It develops slowly and eventually interferes with your vision.
Glaucoma is an eye condition that damages your optic nerve. Learn what causes it.
Macular degeneration is a common eye disorder that causes central vision loss. Learn more about it.
Find out what you need to know about orthostatic hypotension - the sudden drop in blood pressure when you stand up that can make you feel faint.
High blood pressure is often associated with few or no symptoms. Many people have it for years without knowing it.
Learn about migraine types, symptoms, triggers, and treatments as well as how they are different from regular headaches.
Myasthenia gravis is a neuromusclar disorder. It results in weakness of the skeletal muscles, and can cause double vision and drooping of the eyelid.
The things you've wanted to know about MS are all in one place. Learn more about symptoms, treatment, and lifestyle management.
Strabismus, or "crossed eyes," causes the eyes to not line up in the same direction. It tends to develop in children who are very young, and is often treatable.
Astigmatism is a common vision problem caused by an error in the shape of the cornea.
Peripheral neuropathy is a disorder that occurs when your peripheral nerves malfunction because they're damaged.
If you have an injured eye or a foreign object in your eye, you'll likely need to seek medical attention right away. Here's what to look out for in eye emergencies.
The human brain works by sending electrical signals through neurons, which are nerve cells. A seizure occurs when there's a surge in this electrical activity.
A transient ischemic attack (TIA) occurs when there's a sudden lack of blood flow to your brain. Learn about TIA symptoms, treatment, and prevention.
Nearsightedness is an eye condition in which faraway objects appear blurry. Learn more about symptoms, causes, and treatment.
Intracerebral hemorrhage (ICH) is when blood suddenly bursts into brain tissue, causing damage to the brain. Symptoms usually appear suddenly during ICH.
The cornea is a thin, transparent dome that covers your eye's iris and pupil. The iris is the colored part of your eye, and the pupil is the black center. All light…
This feature is for informational purposes only and should not be used to diagnose. Please consult a healthcare professional if you have health concerns.