Search
photokeratitis; ultraviolet keratitis; snow blindness
Etiology:
- exposure of eyes to ultraviolet radiation without sufficient eye protection
a) solar radiation
b) welding arcs
c) ultraviolet lamps
d) damaged metal halide lamps (gymnasiums, assemby halls)
Pathology:
- results in sunburn of the conjunctiva & cornea
Clinical manifestations:
- generally presents 6-12 hours after exposure
- eye pain, may be intensely painful
- photophobia
- tearing
- foreign body sensation
- associated facial erythema & edema are often present
Management:
- prevention
- appropriate eye protection
- welding shield
- sunglasses
- generally self-limited condition with complete recovery
General
keratitis
References
- Wikipedia: Photokeratitis
http://en.wikipedia.org/wiki/Photokeratitis
- UpToDate: Photokeratitis (subscription may be required)
http://www.uptodate.com/contents/photokeratitis