Superior epithelial arcuate lesion. Thin arcuate white lesion in the superior cornea; within 1-3mm of the superior limbus between 10 and 2 o’clock. SEALs can be up to 0.5mm wide and from 1 to 5 mm in length, sometimes with heaped edges. Diffuse infiltration underlying the lesion is possible. Unilateral or bilateral but usually asymptomatic. Occurring symptoms may include edge awareness or irritation and/or foreign body sensation.