What Do Opticians Do? Opticians design, measure, fit, and adapt eyeglasses, frames, and contact lenses for clients according to prescriptions from ophthalmologists or optometrists. Opticians measure a client’s eyes, including the distance between the centers of the pupils and between the eye surface and a lens to determine the best fit for each individual. Opticians use a range of factors to determine and recommend frames and lenses for a client, …Read More