Pathology

Question 1

Define Polymegathism and Pleomorphism

Answer 1

A morphological change of the endothelium that occurs with daily wear/extended wear of Soft CLs of GP lenses.
Polymegathism - change is size
Pleomorphism - change in shape

Question 2

How can you determine the problem based on the colour of discharge?

Answer 2

Yellow - bacterial

White - Allergy

Question 3

What are the 5 causes of corneal ulcers?

Answer 3

1. Bacterial - Pseudomonas aeruginosa
2. Parasitic - Acanthamoeba
3. Fungal - Aspergillia, fusarium, candida, yeast
4. Viral - Herpes Simplex
5. Sterile