Designs of multifocal contact lenses
People in mid-ages are more active than their counterparts several decades ago. A large number of people above 40 still participate in biking, jogging, exercising and playing sports regularly. Presbyopia is quite common among people above 40, so that multifocal lenses are needed. But for these active sports, multifocal eyeglasses are inconvenient.
More...Advantages and types of progressive lenses
Progressive lenses for presbyopia have some advantages over traditional bifocal lenses and trifocals, all of which belong to multifocal lenses. There are no visible lines on progressive lenses, which attract certain group of people in their 40s who care deeply about their appearances. Furthermore, progressive lenses provide clear and comfortable vision at all distance including intermediate zone that is beyond bifocal lenses.
More...Advantages and adaption of progressive lenses
Progressive lenses are a significant breakthrough since they offer a much better solution to people who need reading glasses. In the past, presbyopic individuals had only bifocals and trifocals with visible lines for selection. Eliminating those visible lines, progressive lenses are sometimes called no-line bifocals.
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