The Know – How of Bifocal Contact Lenses
How many times has it happened that you visit the bank to sign important papers and you realize that you have forgotten your reading glasses at home? Breaking reading glasses, misplacing or forgetting them somewhere are the most frequent complaints of people suffering with Presbyopia. There are also many people who detest the idea of wearing glasses, even if they have started experiencing blurred vision at around the age of 40. Wearing bifocal contact lens is the best option for such people.
Bifocal contact lenses work just bifocal glass lenses – two focus adjustments in each lens by two powers of glass, one of which is for close-up, like reading or working on computer and other for distant viewing. But different manufacturers produce different types of lenses and it will take some experimenting to decide which one is right for you. You can either ask your optometrist what type of lens he would recommend, go online for websites like www.1800contacts.com , www.multifocal-contactlenses.org or else visit individual manufacturer sites to get detailed information regarding which lenses will best suit you.
Some bifocal contact lenses are made with aspheric design. This type of lenses has a slow change in focuses. Both powers of lenses are centered in the area of pupil. The eyes will have to adjust and learn to choose the correct focus for usage. Other type of lens is made with a concentric design. Similar to concentric circles, one adjustment is around the outside of lens while another adjustment is in centre of the lens. With little practice, the eyes can easily adjust and use the proper ring. Translating lens is the third type of bifocals. Similar to bifocal glasses, the distance correction is above, while the near correction is at the bottom.
Improved technology is also used to make sure that the lenses stay in place when you move your eyes around and when you blink. There are also certain things which you can consider while selecting your bifocal contacts. This includes material of the lenses, option to choose from tinted color lenses or normal lenses and also whether you want to go for extended wear or disposable lenses. Moreover, if you are suffering from astigmatism, bifocal toric contact lenses are also available.
There are also few drawbacks of bifocal contacts. Some people complain of blurred vision while doing few tasks. If the near vision is clear, then distance vision sometimes suffers and while if the distant vision is comfortable, adjusting to near vision is bit problematic. But these are minor glitches, and with time your eyes will adapt to the lenses and wearing them gets more comfortable.