FCPS Part 1 Ophthalmology: Ocular Pharmacology & Trauma MCQs
Practice MCQs on ocular pharmacology, drug toxicity and ocular trauma for FCPS Part 1 Ophthalmology, with explanations.

Pharmacology is the largest subject in HighYield's Ophthalmology bank at over 300 questions, with a further 90 on ocular pharmacology and 63 on trauma. Drug mechanisms and toxic effects are predictable and examiner-friendly. Here is a sample set.
Ocular Drugs
1. Timolol lowers intraocular pressure by:
- A) Decreasing aqueous humour production ✅
- B) Increasing uveoscleral outflow
- C) Constricting the pupil
- D) Increasing trabecular outflow only
It is contraindicated in asthma and significant bradycardia.
2. Latanoprost commonly causes:
- A) Iris hyperpigmentation and eyelash growth ✅
- B) Cataract
- C) Bradycardia
- D) Pupillary dilatation
3. Which cycloplegic has the longest duration of action?
- A) Tropicamide
- B) Cyclopentolate
- C) Atropine ✅
- D) Homatropine
4. Pilocarpine acts as a:
- A) Muscarinic agonist causing miosis ✅
- B) Beta blocker
- C) Carbonic anhydrase inhibitor
- D) Alpha agonist
Drug Toxicity
5. Optic neuropathy with impaired colour vision is a dose-related effect of:
- A) Ethambutol ✅
- B) Rifampicin
- C) Isoniazid
- D) Pyrazinamide
6. Bull's-eye maculopathy is associated with:
- A) Hydroxychloroquine ✅
- B) Amiodarone
- C) Digoxin
- D) Tamoxifen
Trauma
7. The first step in managing a chemical burn to the eye is:
- A) Immediate copious irrigation ✅
- B) Neutralising agent
- C) Patching
- D) Topical antibiotics
Alkali burns are worse than acid because they penetrate deeply.
8. A major risk after traumatic hyphaema is:
- A) Raised intraocular pressure and rebleeding ✅
- B) Cataract in all cases
- C) Optic neuritis
- D) Uveitis only
Why This Area Is Worth Extra Time
Pharmacology questions are a fixed set: mechanism, side effect and contraindication. Try the free samples on the Ocular Pharmacology and Ocular Trauma subject pages.
Practise With Explanations
HighYield's FCPS Part 1 Ophthalmology QBank has 2,100+ MCQs across every ophthalmic subject plus the shared basic sciences. Every question has a written explanation, and subject analytics show which area needs another pass. Your first 20 questions are free, no card required. See also our most repeated Ophthalmology MCQs post.
Frequently Asked Questions
Which antitubercular drug causes optic neuritis?
Ethambutol, which is dose related and screened with visual acuity and colour vision.
Which eye drop is contraindicated in asthma?
Timolol and other topical beta blockers.
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