The Sutcliffe shields, with all surfaces non-reflective for safe use with the laser, come in many configurations for various applications.
The same basic piece is available modified in design to shield different parts of the body. You can shield eyelashes, eyebrows, eyelids, feckles, lips, gums, teeth etc. or any tissue (deep or superficial) needing protection.
Useful during skin resurfacing, incisional procedures, skin depigmentation etc. In surgery, they can serve as an instrument for retracting tissue and as a backstop.
You will discover many uses for it, the bent model is easier to pick up when gloved.
The Sutcliffe-Boey all-in-one laser shield is perforated to allow it to shield lesions and freckles by limiting the size of the laser beam.