A method is disclosed, comprising obtaining at least one metric of an eye; and determining, based on the at least one metric of the eye, at least one parameter for manufacturing an ophthalmic shield to be worn on the eye. In some embodiments, the ophthalmic shield may have a minimum horizontal dimension of 18 mm and a minimum vertical dimension of 15 mm. In some embodiments, the ophthalmic shield may have a minimum horizontal dimension of 20 mm and a minimum vertical dimension of 17 mm. In some embodiments, the ophthalmic shield may have a minimum horizontal dimension of 26 mm and a minimum vertical dimension of 22 mm.

Controllers for dry eye treatment apparatus and methods are described herein which generally comprise a patch or strip affixed to the skin of the upper and/or lower eyelids to deliver heat to the one or more meibomian glands contained within the underlying skin. The treatment strip or strips include one or more strips configured to adhere to an underlying region of skin in proximity to one or both eyes of a subject such that the one or more strips allow for the subject to blink naturally without restriction from the one or more patches. A controller is in communication with the one or more strips and is programmable to monitor a temperature of the one or more strips to provide a treatment therapy above a threshold temperature of, e.g., 39 C., and below a maximum temperature of, e.g., 48 C., over a treatment period of 12 minutes.