Pterygium, Chalazion and Trachoma Power Point Presentation

Pterygium

• Pterygium is a growth that develops on the conjunctiva or mucous membrane that covers the white part of the eye. 
• It’s a benign or noncancerous growth that’s often shaped like a wedge.  

Chalazion

• A chalazion is a small bump that appears on the eyelid because of a blocked oil gland. It can appear as a single granuloma or multiple granulomas in the upper or lower eyelids.

Trachoma

• Is a contagious bacterial infection which affects the conjunctiva covering of the eye, the cornea and the eyelids. It is often associated with poverty and lack of proper hygiene.
•  It is responsible for the visual impairment of 2.2 million people, of whom 1.2 million are irreversibly blind according to world health organization.