COST Ocular Pathology & Disease Recognition 2

Question 1

Blepharitis most commonly involves chronic inflammation of which structure?

Accepted Answer

Meibomian glands and lid margins

Answer

Blepharitis is chronic inflammation of the eyelid margins involving the meibomian glands, eyelash follicles, and adjacent tissues, often causing dry eye and irritation.

Question 2

A chalazion differs from an internal hordeolum primarily in that it is:

Accepted Answer

A chronic lipogranulomatous inflammation of a meibomian gland

Answer

A chalazion is a chronic, sterile lipogranulomatous inflammation caused by obstruction and rupture of a meibomian gland, unlike a hordeolum which is an acute infectious process.

Question 3

Anterior uveitis (iritis) is classically characterized by cells and flare in which compartment?

Accepted Answer

Anterior chamber

Answer

Anterior uveitis involves inflammation of the iris and ciliary body, with inflammatory cells and protein (flare) visible in the anterior chamber on slit-lamp examination.

Question 4

Viral conjunctivitis is most commonly caused by which pathogen?

Accepted Answer

Adenovirus

Answer

Adenovirus is the most common cause of viral conjunctivitis, presenting with watery discharge, follicular reaction, and often preauricular lymphadenopathy.

Question 5

Keratoconus is best described as a condition involving:

Accepted Answer

Progressive thinning and conical protrusion of the cornea

Answer

Keratoconus is a non-inflammatory ectatic disorder causing progressive corneal thinning and conical protrusion, resulting in irregular myopic astigmatism.

COST - Certified Ophthalmic Surgical Technologist Practice Test

COST - Certified Ophthalmic Surgical Technologist Practice Test

COST Ocular Pathology & Disease Recognition 2