Canthotomy
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Introduction
- Procedures, eg keratectomy and cataract surgery , require increased exposure of globe.
Uses
- → To increase exposure of globe.
- → Treatment of epibulbar/corneal dermoid.
- → Replacement of prolapsed globe
.
- → Keratectomy .
- → Cataract surgery.
Advantages
- Simple to perform.
- No specialist equipment required.
Preparation
- Standard sterile preparation as for any skin incision.
Requirements
Materials required
Minimum equipment
- Ophthalmic kit.
- Straight Mayo scissors.
Minimum consumables
- 4~0-6~0 non-absorbable suture material, eg silk.
- 3~0-6~0 absorbable suture material, eg vicryl/vicryl rapide.
- Petroleum jelly to protect cornea.
Sequelae
Complications
- Distortion of eyelid if do not reappose canthotomy wound accurately.
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