Anatomy of Eyelids

What is the primary function of the eyelids?

What is the purpose of the eyelids in terms of lubrication?

What are the two portions of the eyelid?

What is the name of the opening between the two eyelids?

Where do the upper and lower eyelids meet?

Which virus causes epidemic keratoconjunctivitis?

What is the common treatment for Herpes simplex virus affecting the eye?

What symptoms are commonly caused by Adenoviruses affecting the eye?

How is Herpes simplex virus that affects the genitals categorized?

Which of the following is a symptom of the first type of Herpes simplex virus?

Eyelid Function and Structure

Thin, mobile folds that cover the eyeball anteriorly
Provide protection from excessive light or injury
Maintain lubrication by distributing tears over the surface of the eyeball

Eyelid Anatomy

Divided into upper and lower portions
Meet at the medial and lateral canthi of the eye
The opening between the two eyelids is called the palpebral aperture or opening

Viruses and the Eye

Viruses typically affect the front part of the eye, while infection of the back part is rare.

Types of Viruses

Adenoviruses:
- Cause two types of inflammation: epidemic keratoconjunctivitis and pharyngeal conjunctivitis.
- Symptoms include itchy eyes, feeling of a foreign body inside the eye, redness of the conjunctiva, and adhesion of the eyelids.
- Treatment involves using povidone iodine at a concentration of 0.8%.

Herpes Simplex Virus

Symptoms:
- Cold sores and facial blisters that may appear after a cold or fever.
Types:
- First type: Affects the face, lips, and eyes.
- Second type: Genital, affecting the genitals.
Characteristics:
- Typically affects only one eye.
Treatment:
- Topical antivirals such as edoxuridine, vidarabine, and trifluoridine.

This quiz covers the structure and functions of eyelids, including their protective and lubricating roles. Topics include the anatomy of the upper and lower eyelids, palpebral aperture, and more.