Which physical examination finding is considered a hallmark sign often associated with adenovirus-induced conjunctivitis?
A.Large ‘cobblestone’ papillae on the tarsal conjunctiva.
Cobblestone papillae are specifically associated with severe allergic conjunctivitis.
B.Marked pre-auricular lymphadenopathy.
Right answer
Swollen, tender lymph nodes in front of the ears are a classic clinical marker for viral
conjunctivitis.
C.Purulent discharge that causes eyelids to stick together.
This finding is the key clinical feature of bacterial infections rather than viral ones.
D.Dendritic lesions visible on the corneal epithelium.
Dendritic ulcers are the primary diagnostic sign for Herpes Simplex Keratitis, not standard viral conjunctivitis.
In the management of bacterial conjunctivitis, what is the recommended frequency for applying topical antibiotic drops during the first 24 hours?
A.Four times a day.
This is the maintenance dose used after the initial 24-hour intensive treatment period.
B.Every two hours.
Right answer
Frequent application during the first day is necessary to hasten recovery before reducing the dose for the remainder of the week.
C.Once every five hours.
This frequency does not align with the intensive loading phase required for effective early management.
D.Only at night before sleeping.
Night time application is usually reserved for antibiotic ointments to maintain contact and prevent eyelid stickiness.
A patient presents with intense ocular itching, chemosis, and stringy discharge.
What is the most likely diagnosis?
A.Anterior Uveitis
Uveitis presents with deep pain and photophobia but lacks the itching and stringy discharge characteristic of allergies.
B.Chlamydial Conjunctivitis
Chlamydial infections are typically chronic and characterized by follicles and mucopurulent discharge rather than intense itching.
C.Bacterial Conjunctivitis Bacterial cases involve purulent discharge and grittiness but usually do not cause significant itching or chemosis.
D.Allergic Conjunctivitis
That’s right!
Intense itching is the hallmark feature of allergic reactions in the eye, often accompanied by conjunctival swelling (chemosis).
Why must topical steroids be strictly avoided when Herpes Simplex Keratitis is suspected?
A. They cause the iris to stick to the lens.
Adhesion between the iris and lens (posterior synechiae) is a complication of uveitis, not a result of using steroids for HSV.
B. They neutralize the effectiveness of antiviral creams like aciclovir.
The issue is not pharmacological interference but rather the direct physiological effect of steroids on the viral lesion.
C.They cause an immediate secondary bacterial infection.
While steroids can increase infection risk, the primary danger in HSV is the exacerbation of the viral ulcer itself.
D.They can cause the dendritic ulcers to spread and deepen rapidly.
Right answer
Steroids suppress the local immune response, allowing the virus to replicate and damage deeper layers of the cornea.
Which of the following is a specific diagnostic sign of Anterior Uveitis observed during a slit-lamp examination?
A.Dendritic ulcers on the corneal surface.
Dendritic ulcers are the signature finding of Herpes Simplex Keratitis.
B.Cells and Flare in the anterior chamber.
Right answer
The presence of floating white blood cells and protein leakage (flare) confirms active intraocular inflammation.
C.Generalized conjunctival injection with purulent crusting.
This describes the clinical presentation of bacterial conjunctivitis, which is an external infection.
D.Follicles on the palpebral conjunctiva.
Systemic tetracycline is the preferred treatment for Chlamydial Conjunctivitis, but in which patient population is it specifically contraindicated?
A.Pregnant women.
Right answer
Tetracyclines can cross the placenta and interfere with the development of the fetus’s bones and teeth.
B.Elderly patients with glaucoma.
While medications must be monitored in the elderly, glaucoma is not a standard
contraindication for systemic tetracycline.
C. Patients with a history of cold sores.
A history of HSV does not contraindicate the use of tetracycline for a separate chlamydial infection.
D.Young adults.
Young adults are the primary demographic affected by chlamydial conjunctivitis and are the standard candidates for this treatment.
What is the primary purpose of using cycloplegic agents like atropine in the treatment of Acute Anterior Uveitis?
A.To reduce the production of watery discharge.
Watery discharge is a symptom of inflammation, but cycloplegics specifically target muscle function and pupil position.
B.To relieve pain from ciliary muscle spasms and prevent posterior synechiae.
Right answer
Paralyzing the ciliary muscle reduces pain and keeps the pupil dilated to prevent the iris from sticking to the lens.
C.To kill the underlying bacteria causing the inflammation.
Cycloplegics are not antimicrobial agents; they are used for symptomatic relief and structural protection.
D.To decrease intraocular pressure by increasing drainage.
While IOP management is important in uveitis, cycloplegics are primarily used for pain and adhesion prevention.
In Case 1, Saman mentions that several children in his classroom have been sent home with ‘pink eye.’ How does this epidemiological context help narrow the diagnosis?
A. It confirms that the infection must be bacterial due to the rapid spread.
While bacterial infections spread, large-scale community epidemics associated with respiratory symptoms are more characteristic of viruses.
B. It suggests a highly contagious viral etiology, common in local epidemics.
Right answer
Viral conjunctivitis, particularly from adenovirus, is extremely contagious and often leads tom outbreaks in schools and communities.
C.It points toward a widespread chlamydial outbreak among the students.
Chlamydial conjunctivitis is generally associated with young adults and genital infections rather than school-based respiratory/eye epidemics.
D.It indicates the presence of a shared allergen in the classroom environment.
Allergies typically do not present as ‘epidemics’ requiring children to be sent home for infection control.
What common clinical sign in Anterior Uveitis refers to clusters of inflammatory cells sticking to the inner surface of the cornea?
A. Follicles
Follicles are lymphoid aggregations found on the conjunctiva, not the inner surface of the cornea.
B.Dendritic lesions
Dendritic lesions occur on the outer epithelium of the cornea and are caused by viral
replication (HSV).
C.Hypopyon
A hypopyon is a layer of cells that settles at the bottom of the anterior chamber, rather than sticking to the corneal wall.
D.Keratic Precipitates (KP)
Right answer
KP are a classic sign of uveitis, representing inflammatory debris that has settled on the corneal endothelium.
