Which of the following procedures may be considered a plastic surgery treatment?

The inclusion of all mentioned procedures as plastic surgery treatments is correct because each one can be classified under the broader category of surgical or non-surgical cosmetic procedures aimed at enhancing or altering physical appearance.

Laser resurfacing involves the use of lasers to improve skin texture, eliminate wrinkles, and reduce scarring, which, while often performed by trained professionals, can be part of plastic surgery practices, especially when addressing significant aesthetic issues.

A deep chemical peel is a more intensive method of skin exfoliation and reconstruction that often requires medical oversight and can lead to considerable alterations in appearance, similar to surgical interventions.

An eye lift, specifically known as blepharoplasty, is a surgical procedure intended to improve the appearance of the eyelids by removing excess skin and fat, which clearly falls under the definition of plastic surgery.

Each of these treatments aims to improve aesthetic outcomes and can be integrated into the practice of plastic surgery, affirming that they collectively belong to this category.