A chalazion is a lump in the eyelid that is caused by a blocked oil gland. Symptoms and signs include redness and pain. Applying warm compresses and lightly mas...learn more »
Migraine headaches are one of the most common problems seen in emergency departments and doctors' offices. Migraines are due to changes in the brain and surroun...learn more »
Acute angle-closure glaucoma is caused by a rapid or sudden increase in pressure inside the eye, called intraocular pressure (IOP). The condition requires treat...learn more »
The crystalline lens (commonly referred to as the lens) is the natural lens of the eye, located behind the pupil. The lens consists of a soft outer cortex and a...learn more »
The iris is a circular, pigmented membrane that provides the eye its color and forms the pupil of the eye. The iris is made up of muscular fibers that control ...learn more »
The definition of glaucoma has changed drastically since its introduction around the time of Hippocrates in approximately 400 BC.
The word glaucoma came fro...learn more »