Guide to Eyeglasses

Proper usage of regular and multifocal reading glasses

Progressive addition lenses are mostly great for all distances. With soft design, these lenses provide acceptable and comfortable vision. Some eye doctors also think that progressive lenses offer much more natural and usable vision than bifocals and trifocals. Unlike bifocals and trifocals, progressive lenses have as many as nearly 20 focal points. There are many notable brands available such as Zeiss. Incorrectly positioned progressive lenses can cause blurry vision. Plastic markers can be used to check the right positioning of progressive lenses, both side to side and up and down.