The following questions are designed to test learners' knowledge of Orbital and Periorbital Cellulitis. The case was prepared by Andy Jin, a medical student at Dalhousie Medical School in Halifax, Nova Scotia, with assistance from Dr. Aishwarya Sundaram, Dr. Jeff Steeves and Dr. Karen Forbes.

Learning objectives are outlined below:

• Describe the anatomy and physiology of the eye and related structures
• Describe the pathophysiology and risk factors of common diseases affecting the eye and related structures
• Differentiate between orbital vs periorbital cellulitis.
• List and classify the pathogens causing infections of the eye and related structures
• Describe the basic principles of pharmacology used in the management of common eye infections