Dr. Nathan Congdon M.D.

IntroductionHealthy infants tend to achieve their growth and development milestones in a timely manner. They also develop their vision, hearing, movement, and other types of vital functions because certain enzymes clear out fatty protein as well as other unwanted elements that can hinder normal...

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...

Shingles is a contagious viral infection that is caused by the varicella zoster virus, the same virus that causes chickenpox. This virus affects a particular nerve section, causing painful rashes on the skin connected to that particular nerve. The rash normally appears in a form of a band on any...

What is bacterial conjunctivitis?Conjunctivitis is an inflammation of the palpebral or bulbar part of the eye. There are many types and many causes of conjunctivitis. One common type is bacterial conjunctivitis, wherein bacteria that infect the eyes spread through direct contact with an infected...

Eye floaters are small, moving specks on the eyeball that often occur in one's field of vision. These grey or black dots, become more prominent while looking at a bright object. If the floaters are large they may shadow vision, but in most cases, eye floaters are harmless. People often neglect or...

What is Glaucoma?Glaucoma is a medical condition that affects the eyes. It is characterized by high pressure in the eyes, leading to damages on the optic nerve, which can eventually impair your vision.Glaucoma is one of the leading causes of blindness worldwide. It can affect both men and women at...