Which assessment tool is used to evaluate actinic keratosis of the eyelid?

• A. A-seg photo.
• B. Full-body MRI.
• C. Visual field testing.
• D. Fundus photography.

Answer: (A)

Actinic keratosis on the eyelid is a superficial, UV-damage lesion on the skin of the eyelid that benefits from documentation of its surface characteristics. An anterior segment photograph focuses on the eyelids and the front part of the eye, providing a clear record of the exact location, texture, color, keratosis, crusting, and margins of the lesion. This makes it ideal for evaluating the lesion and monitoring changes over time or in response to treatment. The other tools don’t target the eyelid skin: full-body MRI is inappropriate for a localized surface lesion, visual field testing assesses functional vision rather than skin findings, and fundus photography images the retina and posterior structures, not the eyelids.