A lateral brow lift or temporal lift is used when a patient has redundant or loose skin of the lateral eyebrow area. "Crow's feet" are radiating lines caused by the circular orbicularis oculi muscles that we use when we smile or squint. These would be considered "dynamic" or active line or wrinkles. If the lines persist when the muscles are not active, these are considered "static" lines or wrinkles. The former are treated by Botox, and the latter are treated by facial peel or laser resurfacing.
If your lateral eyelid area and brows have extensive loose skin, perhaps a temporal lift can be of value, but you may be a better candidate for a full bicoronal or endoscopic forehead lift (the brows don't usually sag only laterally, they usually sag over their entire length!). Make sure you are seeing an experienced plastic surgeon or facial plastic surgeon who is trained and experienced in forehead lifts of all kinds. Otherwise, you may be seeing someone who just has the "lateral lift" hammer and everything (and every patient) is a nail!