A headache behind the eye is known as a cluster headache, according to WebMD. The term refers to a category of headache that recurs in "clusters" of several times per day over weeks or months. More » Health Conditions & Diseases

Because there are different types of brain tumors that can form behind the eyes, there can be different causes for them that can include cancer and genetic disorders or mutations. For example, an optic nerve glioma is a ... More » Health Conditions & Diseases Cancer

The most common reason for morning headaches is sleep disorders, according to the American Headache Society, and headache sufferers have a greater propensity for sleep disorders. Too little or too much sleep, obstructive... More » Health Conditions & Diseases
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Small, unruptured aneurysms in the brain have no symptoms, but larger aneurysms may press on the brain and cause a localized headache, dilated pupils, blurred vision, and pain behind or above the eye, explains the Brain ... More » Health Conditions & Diseases

The side effects of a mild concussion can include confusion and clumsiness, headache, ringing in the ears, and nausea or vomiting, says WebMD. The person can also be sluggish, find it hard to concentrate and suffer from ... More » Health Conditions & Diseases

Symptoms of an unruptured brain aneurysm include blurred vision, a severe headache, dilated pupils, neck pain or a change in speech, according to WebMD. Symptoms of a ruptured aneurysm occur suddenly and may include fain... More » Health Conditions & Diseases

To identify an illness in a child who is over the age of 12 months, some troubling symptoms to look for are a very high fever, severe headache, rash that appears on different parts of the body, stiff neck and a serious s... More » Health Conditions & Diseases