Hampden Optical, an independent eye care and eyewear shop in Mechanicsburg, Pennsylvania, uses an on-site lab and in-person fittings to get patients well-fitted glasses quickly and accurately.

Much of the lens finishing and fitting happens on site, so patients often leave with a clear plan the same day, and adjustments or repairs are handled right there.

ABO-certified opticians take precise measurements, and the shop carries more than 800 designer frames.