Bifocal contact lenses
As people get older, they suffer from vision problems, reading becomes difficult, both long distance as well as short distance. Such people need help to correct their vision problems. This can be availed in the form of vision aids such as bifocal contact lenses.
When people cannot see objects or read print that is at a close distance, they are said to be suffering from presbyopia. This happens when the lens in the eye becomes less flexible due to enhanced age. In order to rectify this problem, the person needs bifocal lenses.
Earlier, people struggled with the monovision contact lenses, which meant that people could either wear lenses for long distance or short distance, but not both. The biggest drawback with these lenses was that the adjustment period was long and difficult. In the last few years the innovation of bifocal lenses and in particular the no-line bifocal lenses have revolutionized the contact lens industry. And, recently there have been several more developments in the bifocal lenses industry.
Every type of contact lens available can be made in the bifocal variety, which is a true boon for the more aged population, which require advanced visual aids, with the passage of time. Bifocal contact lenses provide a complete visual aid solution and are used in the same manner as bifocal glasses. The focal adjustments in a bifocal lens are determined by two powers of each lens – for long distance and short distance vision impairment. Both adjustments to correct vision are made in the lens itself, and are differentiated by a sharp delineation.