Dr. Donald Yost Lesser M.D.

What is eye herpes?Eye herpes, or ocular herpes, is a recurrent viral infection that affects the eyes. It is caused by herpes simplex virus type 1. It causes an inflammation of the eye, as well as scarring in the cornea.Eye herpes can be transmitted from one person to another when there is a close...

Cataracts can be present at birth – which is termed as congenital, and in other cases can develop later in life. Various studies have shown an estimation that one out of every 250 children will develop a cataract either prior to birth or during childhood. While the exact cause is unknown,...

What is Blepharitis?Blepharitis is the inflammation of the eyelids, usually affecting both of the eyelids where eyelashes grow.The inflammation of the eyelids is often a chronic medical condition, which is very hard to treat. Blepharitis is a condition that does not affect vision. It is also not...

Glaucoma is a group of conditions that leads to the impairment of the optic nerve that carries information from the eyes to the brain. It is a progressive condition, which, if not treated, may lead to complete loss of vision. The most common cause of this damage is the increase in the pressure...

What is eyelid twitching?Eyelid twitching or myokymia is an involuntary eyelid spasm. The upper lid is usually affected, but spasms can also occur in the lower lid or both lids. Eyelid twitching is often mild for most people. However, others may experience stronger spasms, which may force their lids...

Eye infections occur when various harmful microorganisms invade the eyes. They can be caused by bacteria, viruses, or fungi. When suspecting an eye infection, you should go and get a detailed eye examination from an eye doctor. Trying to self-diagnose and even self-treat eye problems and eye...