Parrelli Optical, North Andover

“It’s the challenging fits—either spectacles or contact lenses—that drive me," writes optician John Parrelli on his website. Since opening his first shop in 1978, these challenges have included cataract sufferers who were left without binocular vision following surgery. Parrelli and his team of lens specialists experimented with different materials, designs, and indices of refraction until they could fabricate a lens thin and strong enough to restore these patients’ sight.

Today, Parrelli Optical has grown to six locations, where optometrists inspect patients' vision with a comprehensive, 15-point eye-health assessment and complete visual analysis. Through digital corneal photography, they're able to diagnose corneal disease and increase the precision and comfort of prescriptions. The locations also host a wide selection of designer frames, ideal for experimenting with different styles, such as wearing 20 frames at once.