Topic 6 — Ocular Trauma, Globe Injuries & Visual Rehabilitation

Connecting injury mechanism, ocular damage, examination findings, emergency priorities and rehabilitation for rapid revision.

1. THE TOPIC IN ONE CONNECTED FLOW

Ocular trauma becomes easier to understand when every injury is followed from its mechanism to its visual consequence. The first major decision is whether the eyewall is intact. From there, examination identifies the damaged structure, investigations clarify hidden injury, urgent treatment protects vision, and rehabilitation maximizes useful function when normal vision cannot be fully restored.

Injury / Exposure

Blunt • sharp • foreign body • chemical • heat • radiation

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Classify Injury

Open globe • closed globe • surface injury

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Ocular Damage

Cornea • anterior chamber • lens • vitreous • retina • optic nerve

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Clinical Clues

Visual loss • pain • pupil change • hyphema • fundus abnormality

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Investigation

Slit lamp • fluorescein • CT • fundus assessment • ultrasound when safe

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Protect & Treat

Shield open globe • irrigate chemicals • treat injured structure

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Outcome / Rehab

Restore vision • low-vision aids • mobility • education • vocational support

2. KEY CLINICAL CONNECTIONS

Open Globe & IOFB

High-velocity or sharp injury
→
full-thickness eyewall damage
→
peaked pupil / tissue prolapse / visual loss
→
protect with rigid shield and obtain urgent ophthalmic care.

Suspected retained metallic fragment
→
CT orbit
→
avoid MRI because ferromagnetic material may move.

Closed Globe & Ocular Burns

Blunt force
→
globe compression and expansion
→
hyphema, lens, retinal or optic-nerve injury
→
examine according to the structure involved.

Chemical exposure
→
continuing tissue injury
→
immediate copious irrigation
→
reduced risk of permanent corneal damage.

Delayed Consequences & Rehabilitation

Penetrating injury
→
ocular-antigen exposure
→
autoimmune bilateral uveitis
→
sympathetic ophthalmia requiring systemic anti-inflammatory treatment.

Permanent visual limitation
→
optical, low-vision and functional rehabilitation
→
greater independence and participation.

3. AIM HIGH-YIELD INTEGRATION REVIEW

⭐ Eyewall status guides the entire assessment: full-thickness corneal or scleral injury means open globe and changes how the eye may be examined.

Blunt trauma → globe deformation → internal damage: an intact eyewall can still coexist with hyphema, lens displacement, retinal injury or optic-nerve dysfunction.

⭐ Suspected open globe → rigid shield: avoiding tonometry and pressure prevents further prolapse or loss of intraocular tissue.

Corneal or subtarsal foreign body → epithelial trauma: fluorescein identifies abrasions, while lid eversion helps locate hidden conjunctival material.

⭐ Chemical exposure → immediate irrigation: treatment begins before detailed examination because reducing tissue contact directly limits ongoing injury.

Radiation or thermal exposure → ocular-surface injury: fluorescein demonstrates epithelial damage, while prevention depends on appropriate eye protection.

Penetrating trauma → immune exposure → bilateral uveitis: new fellow-eye inflammation after injury should raise concern for sympathetic ophthalmia.

⭐ Residual disability → rehabilitation: optical correction, low-vision aids, mobility, educational and vocational support convert remaining visual capacity into functional independence.

AIM Exam Trap: A closed globe means the eyewall is intact; it does not mean the injury is mild. Severe retinal, lens, choroidal or optic-nerve damage can occur without a full-thickness wound.

Topic 6 — Ocular Trauma, Globe Injuries & Visual Rehabilitation

1. THE TOPIC IN ONE CONNECTED FLOW

2. KEY CLINICAL CONNECTIONS

3. AIM HIGH-YIELD INTEGRATION REVIEW

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