YEAR 04 • MAJOR CLINICAL DISCIPLINES

Ophthalmology

20 learning units • 100 chapter sections • 200 explained questions. Assess visual symptoms, recognise sight-threatening disease and plan safe treatment, referral and follow-up.

Original RAHBAR study material for the Year 4 learning pathway. Clinical cases support supervised undergraduate learning. Treatment choices, doses and procedures must follow current local protocols and the responsible clinical team. References & further reading ↓

MODULE 05 / 20

Corneal Abrasion & Infectious Keratitis

Recognise corneal epithelial injury and infection, especially in contact-lens wearers.

Choose an answer and check it immediately. Change your choice to try again. This is a self-study exercise; results are not saved.

Question 01. Which finding most strongly suggests microbial keratitis? A. Isolated itch with a clear corneaB. Painful corneal infiltrate with reduced visionC. Stable refractive blurD. Painless conjunctival vessel alone

Question 02. What does fluorescein primarily reveal in surface assessment? A. Optic nerve conduction speedB. Retinal arterial flowC. Corneal epithelial defectsD. Lens accommodation amplitude

Question 03. Vertical corneal scratches should prompt consideration of what? A. Macular degenerationB. A retained subtarsal foreign bodyC. PresbyopiaD. Chronic open-angle glaucoma alone

Question 04. Which history is particularly relevant to corneal infection risk? A. Contact-lens wear and water exposureB. Shoe sizeC. Remote uncomplicated appendicectomyD. Hair colour alone

Question 05. How urgently should suspected microbial keratitis be reviewed? A. Through an urgent same-day ophthalmic pathwayB. At the next routine annual checkC. Only after several weeks of observationD. Only if both eyes become affected

Question 06. A branching epithelial lesion raises concern for what? A. CataractB. Retinal vein occlusionC. Simple presbyopiaD. Herpes simplex keratitis

Question 07. Why avoid empirical steroids in possible herpetic epithelial keratitis? A. They always cure the infection aloneB. They may worsen epithelial viral infectionC. They sterilise all contact lensesD. They cannot affect the cornea

Question 08. What should happen to contact-lens wear during a corneal ulcer? A. Stop wear and follow specialist adviceB. Continue overnight wearC. Resume immediately if pain briefly improvesD. Replace examination with a new lens pair

Question 09. Persistent pain after a presumed simple abrasion calls for what? A. Indefinite reassuranceB. Re-examination for nonhealing or another diagnosisC. Repeated anaesthetic drops without reviewD. Return only after complete blindness

Question 10. Recurrent sharp pain on waking after an old abrasion suggests what? A. Acute retinal artery occlusionB. Macular hole in every caseC. Stable hyperopia aloneD. Recurrent corneal erosion

0 / 10 answeredReady for assessment →

References & Further Reading

Read the relevant guideline sections alongside these original clinical teaching cases. Local pathways, available services and individual patient factors determine care.

College of Optometrists — Clinical management guidelines

Reference review: 28 September 2026. Consult current local protocols for prescribing, procedures and escalation.