Basal cell carcinoma involves the lower eyelid in 55% of patients, the medial canthus in 30%, the upper eyelid in 10% and the lateral canthus in 5%. [2] When BCC involves the eyelid margin ...

Frontal, as well as lateral, slides were taken of both eyes. On projected slides, a reference line through the medial canthi and vertical lines through the pupil centre and the lateral canthus were ...