Oculoplastics MCQs & Guide
250+ questions with detailed explanations. Master oculoplastics for FRCOphth, ICO, FAICO, DNB and NEET-SS.
Oculoplastics overview
Oculoplastics, lacrimal and orbital disease form the third sub-specialty by exam weight in most modern PG exams. The topic combines anatomy, surgical principles and clinical pattern recognition.
Clinical & exam importance
Oculoplastics accounts for 6–10% of most exams. Lid malpositions, lacrimal sac pathology and thyroid eye disease are reliable recurring themes. FAICO oculoplasty candidates require deep operative knowledge.
At a glance
- MCQ bank
- 250+
- Glossary terms
- 14+
- Free sample MCQs
- 15
- Matched products
- 2
Core anatomy & physiology refresher
The foundations you need before tackling clinical and surgical MCQs.
- Upper lid retractors: levator palpebrae superioris (CN III) and Müller muscle (sympathetic).
- Lower lid retractors: capsulopalpebral fascia and inferior tarsal muscle.
- Whitnall ligament acts as a fulcrum for the levator.
- Lacrimal drainage: puncta → canaliculi → common canaliculus → lacrimal sac → nasolacrimal duct → inferior meatus (valve of Hasner).
- Orbital walls: medial (lamina papyracea) thinnest; floor (maxilla) common in blowout fracture.
High-yield oculoplastics facts for MCQs
The facts that appear most often in real exam stems. Learn them cold.
- 1Ptosis classification: aponeurotic, myogenic, neurogenic, mechanical, traumatic.
- 2Levator function grading: poor (<4 mm), fair (5–7 mm), good (8–12 mm), excellent (>12 mm).
- 3Surgical choice: good function — levator advancement; poor function — frontalis sling.
- 4Entropion: most often involutional (lower lid laxity); cicatricial in trachoma and SJS.
- 5Ectropion: involutional, cicatricial, paralytic (CN VII palsy), mechanical.
- 6Lagophthalmos management: lubricants, taping, gold weight implant, lateral tarsorrhaphy.
- 7Chalazion: chronic granulomatous inflammation of meibomian gland; treat with warm compresses, lid hygiene, I&C if persistent.
- 8Hordeolum: acute staphylococcal infection of meibomian (internal) or Zeiss (external) gland.
- 9Basal cell carcinoma: most common eyelid malignancy; pearly nodule with telangiectasia; medial canthus most common.
- 10Sebaceous gland carcinoma: masquerade as chronic chalazion; pagetoid spread, biopsy mandatory.
- 11Congenital nasolacrimal duct obstruction: epiphora from birth, resolves spontaneously by 12 months in most; probe at 12 months if persistent.
- 12Acute dacryocystitis: painful swelling over lacrimal sac; treat with systemic antibiotics, then DCR.
- 13External DCR vs endonasal DCR: external has slightly higher success but visible scar.
- 14Thyroid eye disease: upper lid retraction, lid lag (von Graefe), proptosis, EOM restriction (IR, MR most affected); IOSS or Hertel measurement.
- 15Blowout fracture: inferior rectus entrapment causes diplopia; oculocardiac reflex needs urgent surgery in white-eyed blowout.
Related oculoplastics glossary terms
Exam-ready definitions filtered by subspecialty.
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PD-CET Ophthal
Post Diploma Centralized Entrance Test preparation with high-yield MCQs and notes.
Eyelids Exam Ready Notes
Oculoplastics and eyelid disorders for your PG and fellowship exams.
Glaucoma Exam Ready Notes
Complete glaucoma notes from pathophysiology to surgical management.
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Eyelids Exam Ready Notes
Oculoplastics and eyelid disorders for your PG and fellowship exams.
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General Ophthalmology
A mixed sampler across all ophthalmology subspecialties to test your overall readiness.
High Yield MCQs
1,000+ high-yield MCQs across all subspecialties with detailed explanations.
Retina Deciphered
150+ pages of handwritten exam-ready notes covering the entire retina syllabus.
Glaucoma Exam Ready Notes
Complete glaucoma notes from pathophysiology to surgical management.
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Last 10 years of ICO/FICO past papers with full explanations and answer keys.
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Suggested study sequence
Six phases used by recent passers. Spread across 4–8 weeks per subspecialty.
- 1
1. Lid anatomy and physiology
Layers, retractors, blood supply, innervation.
- 2
2. Lid malpositions
Ptosis, entropion, ectropion, lagophthalmos with surgical algorithms.
- 3
3. Lid lesions and tumours
Benign vs malignant pattern recognition, biopsy and Mohs.
- 4
4. Lacrimal disease
Drainage anatomy, dacryocystitis, DCR techniques.
- 5
5. Orbital disease
Thyroid eye disease, idiopathic orbital inflammation, cellulitis, tumours.
- 6
6. Trauma and reconstruction
Lid laceration, blowout fracture, anophthalmic socket management.
15 free oculoplastics MCQs with explanations
Exam-pattern stems with the correct option marked and the reasoning spelled out. Open a question to check your answer.
Q1.Most common cause of unilateral proptosis in adults:
Explanation: Thyroid eye disease (Graves') is the most common cause of unilateral and bilateral proptosis in adults.
Q2.In thyroid eye disease the most commonly enlarged extraocular muscle is:
Explanation: TED most often enlarges inferior and medial recti (mnemonic "I'M SLOw"). The tendinous insertions are characteristically spared.
Q3.Most common cause of acquired blepharoptosis in adults:
Explanation: Involutional aponeurotic ptosis (disinsertion or thinning of the levator aponeurosis) is the most common cause of acquired adult ptosis.
Q4.Definition of orbital cellulitis vs preseptal:
Explanation: Orbital cellulitis is postseptal infection with proptosis, painful ophthalmoplegia, ↓ vision, often from ethmoid sinusitis. Preseptal infection is anterior to the orbital septum and does not have these features.
Q5.A bony "tear-drop" sign on coronal CT suggests:
Explanation: Orbital floor blowout fractures show herniation of orbital contents into the maxillary sinus producing a tear-drop sign; muscle entrapment with diplopia indicates need for surgical repair.
Q6.Most common malignant eyelid tumour:
Explanation: BCC accounts for ~90% of malignant eyelid tumours; commonly affects the lower lid medial canthal area.
Q7.Sebaceous gland carcinoma is most often mistaken for:
Explanation: Sebaceous carcinoma may masquerade as recurrent chalazion or chronic unilateral blepharoconjunctivitis – biopsy any suspicious recurrent lid lesion.
Q8.Levator function ≥10 mm with margin reflex distance 1 reduction is classified as:
Explanation: Good levator function (>10 mm) with mild–moderate ptosis is typically treated with anterior aponeurotic repair or Müller muscle resection rather than a frontalis sling.
Q9.Treatment of choice for symptomatic acquired nasolacrimal duct obstruction in adults:
Explanation: External or endoscopic DCR creating an anastomosis between the lacrimal sac and nasal cavity is the definitive treatment for adult NLD obstruction.
Q10.Cavernous hemangioma of the orbit typically:
Explanation: Cavernous hemangioma is the commonest benign orbital tumour in adults, a slowly growing encapsulated intraconal mass best removed surgically.
Q11.Dermoid cyst of orbit most commonly occurs at:
Explanation: Dermoid cysts arise at suture lines, most commonly the superotemporal orbit at the frontozygomatic suture in children.
Q12.Most common cause of acute dacryocystitis:
Explanation: Acute dacryocystitis usually arises from chronic NLD obstruction with secondary bacterial infection (Staph aureus, Streptococci); urgent antibiotics ± I&D.
Q13.In thyroid eye disease, the most sight-threatening complication is:
Explanation: Compressive optic neuropathy from crowded muscles at the orbital apex is the major sight-threatening complication and requires urgent steroids/orbital decompression.
Q14.Entropion of the lower lid in elderly is most commonly:
Explanation: Involutional entropion (horizontal lid laxity, lower lid retractor disinsertion, overriding pre-septal orbicularis) is the commonest type in elderly patients.
Q15.Hertel exophthalmometry measures:
Explanation: Hertel exophthalmometer measures the anterior projection of the cornea (in mm) from the lateral orbital rim; normal <21 mm, asymmetry >2 mm is significant.
Oculoplastics FAQ
Answers to the questions residents ask most about this topic.
When to operate on congenital ptosis?
Best procedure for severe ptosis with poor levator function?
When is DCR indicated?
How to manage active thyroid eye disease?
Recommended oculoplastics book?
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