A systematic review examined published reports of cancer that had spread to the eyelid. Across 73 studies involving 95 people, breast cancer was the most commonly reported original cancer, and eyelid metastases often appeared similar to benign growths before biopsy.

The review also found that eyelid biopsy sometimes helped identify an otherwise hidden original cancer or changed cancer care. Because the evidence came from case reports and case series, the results show patterns among reported cases rather than rates or outcomes for people with eyelid lesions in general.