Final answer:
A profile analyzer is used for simultaneous verification of lens diameter, optic zone width, and peripheral curve width in contact lenses and the cornea.
Step-by-step explanation:
An instrument that allows simultaneous verification of lens diameter, optic zone width, and peripheral curve width is a profile analyzer. Profile analyzers are used in the field of optometry and ophthalmology to measure various characteristics of contact lenses and the cornea. They help ensure the correct fit and comfort of contact lenses for patients. In physics, this is part of the study of geometrical optics, which deals with the reflection and refraction of light through lenses and mirrors.