The bespectacled look is not out any more, thanks to Jassi. But there are glasses and glasses. Knowing what type of lens will do justice to your eyesight and age is a prerequisite for treating your eyes well.
Glass lens - Glass lenses make your frames heavier. The glass lenses are reflective, can break easily and are less prone to scratches. If you want to save on your pair of glasses, you can stick to glass lenses.
Plastic lens - Normally known as CR-39, plastic lenses are preferred as they are light , making the overall frame easy to wear and unbreakable. But if you don't take care, the plastic lenses run the risk of getting scratches. These types of glasses are mostly recommended for outdoor people, and students.
Photochromatic lens - These are mostly available in two shades - grey and brown. Such glasses are soothing to the eyes, especially in the outdoors, the lens change colour to grey or brown. Once you're indoors, the glasses changes back to being colourless. Such lenses suit people who spend a lot of time outdoors and for the elderly. But such lenses are usually not used for children, as they may lose out on clarity at a young age, as for the fashion conscious, they are miles away from these lenses.
Monofocal lens/ Reading Glasses - These are single vision lenses meant for reading. Usually such type of lens is used by people above 40. The Chinese ready-made numbered glasses are slightly cheaper than the custom made glasses.
Bifocal lens - These are mostly used for distance viewing, as well as for prolonged computer usage. This is mostly preferred by homemakers, and the elderly. In fact, bifocal plastic lenses maybe more expensive than bifocal glass lenses.
Multi-focal lens, also known as progressive and Varilux - These lenses are available with different powers for different viewing distances. For television viewing - long distance, for computer viewing - intermediate distance, and for reading - near vision.
Such lenses help the eyes focus all the three different viewing distances with ease. Varilux is a type of multi-focal lens.
Anti-glare/anti-reflective lens - The correct phrase is `anti-reflective lens', though people know it as anti-glare glasses. Such glasses provide 100 per cent protection from the UV rays of the sun/ computer screen. These lenses come handy for computer users and during driving. Anti-reflective glasses prove to be helpful especially at parties where you don't have to remove your glasses while photographs are being taken. Contact lens users can wear these glasses as zero powered glasses at work, or simply to make a fashion statement.
Fashion statement and utility are probably the only reasons for buying a pair of sunglasses. It is safer to buy branded sunglasses from proper optical retail outlets as such glasses are tested in their respective labs before being brought to the showrooms for sale.
Latest style in sunglasses - The style and design of sunglasses will depend on the shape of your face and complexion. For women, broad frames with light shades are in, whereas men prefer broad frames with darker shades.
Believe it or not, but a majority of the contact lenses users are women. The main purpose of wearing contact lenses is for cosmetic purpose, than for utility. Also because, women make an effort to take care of their lenses and are also more comfortable wearing them. While men usually are in a hurry and don't spare much time on their lenses.
Care for contact lens - Most of the contact lens care regime is mentioned in the pamphlet of the lens solution bottle. Make sure your hands are washed clean with soap and water. After every use of the lens, clean the lens container and let them dry in the open for a while. Before and after every use of the lenses, always rinse the lenses.
Published in The Hindu, Metroplus, Kochi edition on November 11, 2006
Link: http://www.hinduonnet.com/thehindu/thscrip/print.pl?file=2006111102010300.htm&date=2006/11/11/&prd=mp
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