A 45-year-old man was admitted to our ophthalmic department
with a week history of itching, tearing, redness, irritation,
and crusting in left eye. He had no specific ocular
or systemic disease. His visual acuity was 20/20 in both
eyes. A slit-lamp examination showed reddened, crusty eyelid
margins and mild conjunctiva hyperaemia. Multiple, mobile