Test your central visual field
INSTRUCTIONS (To be done with your reading glasses on)
Hold this central vision chart 14 inches away from you. Read more…
Ectropion
Ectropion is an outward turning, or eversion, of the eyelid margin. It may be mild or a total eversion, which exposes the mucous membrane lining underneath the lid. It usually involves the lower lid and not the upper.
What is going on in the body?
Ectropion formation may be congenital, or present at birth. Ectropion may also develop following changes in the tone of eye muscles, or the skin around the eye.
What are the causes and risks of the condition? Read more…
Eversion of the Eyelid – Ectropion
Ectropion is an outward turning, or eversion, of the eyelid margin. It may be mild or a total eversion, which exposes the mucous membrane lining underneath the lid. It usually involves the lower lid and not the upper.
What is going on in the body?
Read more…
Pink Eye - Conjunctivitis
The conjunctiva is the clear mucous membrane layer covering the white portion of the eye. It extends under the eyelid where it turns back and becomes the underneath mucous membrane lining of the upper and lower lids. When this membrane becomes inflamed, it is called conjunctivitis.
What are the causes and risks of the infection?
Read more…
Myringotomy - Ear Tube Insertion
Ear tube insertion is a surgical procedure used to drain fluid from the middle ear. In this procedure, a small cut is made in the eardrum. Next, special tubes, called PE tubes, are placed in the ear to allow fluid to drain from the middle ear. These tubes also allow air to circulate through the area behind the middle ear.
Usually the eustachian tubes, which connect the back of the throat behind the nose to the middle ear, allow air to get into the space behind the eardrum. Air is needed in this space to allow the eardrum to move and function correctly. When air is not present in this space, fluid can build up and bacteria can grow. This can cause ear infections. Inserting PE tubes gives the eustachian tubes time to grow and begin to function better. Read more…
Hordeolum - Stye
A stye is a bacterial infection of one of the hair follicles of the eyelashes or one the small glands near the inner corner of the eye.
What is going on in the body?
A stye occurs when bacteria infect one of the hair follicles of the eyelashes or one of the glands near the inner corner of the eye. Ninety five percent of the time, the infection is caused by Staphylococcus aureus bacteria.
What are the causes and risks of the infection? Read more…
Cataract
(For developmental or congenital cataracts, see Eye Defects and Conditions in Children: Congenital Cataract.)
A cataract is a congenital or degenerative opacity of the lens. The main symptom is gradual, painless vision blurring. Diagnosis is by ophthalmoscopy and slit-lamp examination. Treatment is surgical removal and placement of an intraocular lens.
Lens opacity can develop in several locations:
Central lens nucleus (nuclear cataract)
Beneath the posterior lens capsule (posterior subcapsular cataract) Read more…
