corneal foreign body
| Headline | |
|---|---|
| History | - What type of foreign body? — e.g. dirt or organic material (higher risk of infection), glass, metal (rust ring may lead to inflammation and a corneal epithelial defect), inorganic material - Velocity of impact? — e.g. angle grinders, high speed drilling and ‘weed eater’ injuries are at risk of corneal or scleral penetration. - Symptoms? — foreign body sensation, tearing, blurred vision. - Use of eye protection? |
| Examination | Visual acuity as always Look for rust ring Tonometry? > Distortion of the cornea, anterior chamber, iris, pupil or lens indicates ocular penetration |
| Diagnostic investigations | |
| Differentials | |
| Immediate management | Irrigate Topical LA → Remove FB if able - sterile cotton bud, beveled edge of a needle Abx drops/ointment |
| Ongoing management | Avoid wearing contact lens for >= 1/52 after defect fully healed or feels normal |