Welcome to your 🔴 Red Eye, Conjunctival, Corneal & Ocular Surface Disorders Arena — 40 Integrated MCQs
1.
A patient with active bacterial corneal ulceration is being treated with topical antimicrobial therapy. Which additional medication should be avoided unless specifically advised by an ophthalmologist?
2.
A 19-year-old student develops watery red eyes, foreign-body sensation and tender preauricular lymph nodes following an upper respiratory infection. Which diagnosis is most likely?
3.
An infant with uncomplicated congenital nasolacrimal duct obstruction is otherwise well. Which initial management is most appropriate?
4.
A contact-lens wearer is receiving intensive topical antibiotics for bacterial keratitis. Twenty-four hours later, the infiltrate is similar in size but the cornea has become noticeably thinner. Which finding most strongly indicates increasing risk of a serious complication?
5.
A patient with a red eye reports severe pain, photophobia and reduced visual acuity. Examination shows a focal white corneal infiltrate. Which diagnosis should be considered first?
6.
A 7-month-old infant is referred for persistent tearing. In addition to watering, the child has marked photophobia and a cloudy enlarged cornea. Which interpretation is most appropriate?
7.
A 35-year-old man with chronic blepharitis develops small peripheral corneal infiltrates. The lesions are separated from the limbus by clear cornea, and microbial infection is not evident. Which mechanism best explains the corneal inflammation?
8.
A 62-year-old man has a persistent corneal epithelial defect but reports surprisingly little pain. Examination shows markedly reduced corneal sensation. Which mechanism best explains this presentation?
9.
A 32-year-old patient with epithelial herpes simplex keratitis is mistakenly treated with topical corticosteroid alone. The epithelial ulcer enlarges over the next several days. Which mechanism best explains the deterioration?
10.
A farmer develops a painful corneal ulcer several days after trauma with plant material. Corneal scraping demonstrates fungal elements. Which treatment principle is most appropriate?
11.
A patient presents with acute red eye and thick mucopurulent discharge causing the eyelids to stick together on waking. Which condition is most likely?
12.
A patient with severe microbial keratitis develops marked corneal thinning. The ophthalmologist suspects a small perforation. Which bedside test is most useful for confirming aqueous leakage?
13.
A 26-year-old contact-lens wearer has persistent keratitis despite antibacterial treatment. She used tap water to clean her lenses, and examination later shows perineural infiltrates. Which treatment approach is most appropriate after confirming the suspected infection?
14.
A 45-year-old woman has persistent dry eyes and dry mouth. Which underlying mechanism best explains her ocular symptoms in Sjögren syndrome?
15.
A 42-year-old woman with dry mouth and autoimmune disease complains of persistent gritty eyes. Schirmer testing demonstrates reduced tear production. Which type of dry-eye disorder is most likely?
16.
A 48-year-old woman reports burning and fluctuating vision that improves temporarily after blinking. Examination shows blocked meibomian gland openings and rapid tear-film break-up, while aqueous tear production is relatively preserved. Which mechanism best explains her symptoms?
17.
An infant with congenital nasolacrimal duct obstruction is being managed conservatively. Which development would most strongly support ophthalmic consideration of earlier procedural intervention?
18.
A 20-year-old woman has recurrent bilateral itching, chemosis and watering during pollen exposure. Which topical treatment most directly targets the underlying inflammatory mechanism?
19.
A corneal ulcer is examined after instillation of fluorescein dye. Which finding is demonstrated most clearly by this test?
20.
A 24-year-old man develops rapidly progressive redness with copious purulent discharge. Examination shows marked conjunctival inflammation with early corneal involvement. Which management principle is most appropriate?
21.
A 22-year-old student presents with bilateral red eyes, intense itching and watery discharge after exposure to dust. Which diagnosis is most likely?
22.
A patient with acute dacryocystitis has a tender inflamed lacrimal sac and surrounding edema. Why is routine probing of the lacrimal system avoided during the acute inflammatory phase?
23.
A patient with facial nerve palsy cannot close one eye completely. He develops foreign-body sensation and inferior punctate corneal staining. Which management principle is most appropriate?
24.
A malnourished child develops conjunctival dryness and Bitot spots. Which deficiency is the most likely cause?
25.
A patient has recurrent unilateral painful red eye. Fluorescein staining demonstrates a branching epithelial lesion with terminal bulbs. Which diagnosis is most likely?
26.
A 40-year-old outdoor worker has a triangular fibrovascular conjunctival growth extending from the nasal side onto the cornea. Which diagnosis is most likely?
27.
A patient has burning eyes, crusting around the eyelashes and blocked meibomian gland openings. Which diagnosis best explains these findings?
28.
A patient with suspected microbial keratitis has a clinically significant corneal ulcer. Which investigation is most useful for identifying the causative organism?
29.
A 56-year-old woman has had watering and intermittent mucopurulent reflux from one eye for two years. She now develops sudden painful erythematous swelling over the lacrimal sac. Which diagnosis best explains the current presentation?
30.
A 38-year-old man develops a temporal conjunctival fold attached to the cornea several months after a chemical injury. A probe can be passed beneath the body of the lesion near the limbus. Which diagnosis is most likely?
31.
A patient has long-standing watering and recurrent discharge without marked pain. Pressure over the lacrimal sac causes mucopurulent material to reflux through the punctum. Which diagnosis is most likely?
32.
A malnourished child with conjunctival xerosis and Bitot spots is not treated. Which ocular complication represents the greatest immediate threat to vision as the deficiency becomes severe?
33.
A child continues to have significant symptoms from congenital nasolacrimal duct obstruction despite conservative treatment beyond infancy. Which procedure may now be considered?
34.
A 6-month-old infant has persistent watering and mucous discharge from one eye. Gentle pressure over the lacrimal sac produces reflux through the punctum. Which diagnosis is most likely?
35.
A 48-year-old woman develops sudden painful redness and tenderness below the medial canthus. The swelling is centered over the lacrimal sac. Which diagnosis is most likely?
36.
A 27-year-old woman presents with a localized bright-red area of one eye and mild discomfort. Visual acuity is normal, the cornea is clear, and the superficial vessels blanch after topical phenylephrine. Which diagnosis is most likely?
37.
A contact-lens wearer develops severe ocular pain after swimming while wearing lenses. Early examination findings appear less marked than the severity of pain. Which condition should be suspected?
38.
A patient presents with severe deep boring ocular pain that radiates toward the forehead. Examination shows deep violaceous redness of the globe. Which diagnosis is most likely?
39.
A patient develops a painful corneal ulcer after being struck in the eye by a tree branch. Examination shows a stromal infiltrate with feathery margins. Which cause is most likely?
40.
Several students in a hostel develop bilateral watery red eyes after one student had an upper respiratory infection. Which measure is most appropriate to reduce further spread?
