Other Conjunctivitis

Question 1

What is chemical conjunctivitis classically due to?

Answer 1

Silver nitrate eyedrops

Silver nitrate eyedrops were historically used for gonococcal prophylaxis in neonates.

Question 2

What has replaced silver nitrate eyedrops for gonococcal prophylaxis in neonates?

Answer 2

Erythromycin ointment

Question 3

What is the primary symptom of viral conjunctivitis?

Answer 3

Teary eye that can be unilateral or bilateral, and either itchy or non-itchy.

Question 4

In which age groups is viral conjunctivitis most likely diagnosed?

Answer 4

School-age kids and adults.

Question 5

What is the causative agent of viral conjunctivitis on USMLE in both school-age kids and adults,?

Answer 5

Adenovirus, which is a DNA virus.

Question 6

What is the treatment for viral conjunctivitis?

Answer 6

Supportive treatment with saline rinse.

Question 7

What is ‘cobblestoning’ of the tarsal conjunctiva associated with?

Answer 7

Allergic conjunctivitis

‘Cobblestoning’ refers to the appearance of the conjunctiva in allergic reactions.

Question 8

What condition is indicated by ‘cobblestoning’ of the nasal mucosa?

Answer 8

Allergic rhinitis

‘Cobblestoning’ in the nasal mucosa is a characteristic finding in allergic rhinitis.

Question 9

Does allergic conjunctivitis have to be bilateral?

Answer 9

No

Allergic conjunctivitis can occur unilaterally or bilaterally.

Question 10

Is itching a required symptom for allergic conjunctivitis?

Answer 10

No

Allergic conjunctivitis does not necessarily have to be itchy.