Sometimes our vision fails us at two or even three distinct distances, especially as we age. Bifocal lenses—lenses with two distinct viewing areas—have traditionally been a reliable solution to such a dilemma. (A lens with three distinct viewing areas is called a trifocal.)By distinct, we mean there are noticeable lines separating the two different fields of vision within a bifocal lens surface. A slight adjustment to the angle of the head allows wearers to choose which lens area to look through based on the distance of the object they’re trying to see.

• Driving eyeglasses – this category of eyeglasses may have 2 subcategories: Polarized sunglasses with anti-glare coating, specially designed for driving and prescription eyeglasses that offer clear vision.
• Safety eyewear – these glasses are made of ultra-durable materials and come in wraparound design or side shields, to offer more protection for your eyes.
• Swim goggles – swimmers and scuba divers who wear eyeglasses or contact lenses could benefit from prescription swim goggles.

An anti-reflective treatment applied on the front and the back of prescription lenses greatly reduces the light reflected by the lens surfaces. As a result, your eyes appear clearer behind the lenses, vision is more defined, and glare from reflected objects—especially headlights at night—is virtually eliminated. Plus, if you have a high-powered “strong” prescription, anti-reflective coating makes your eyes appear more natural.