Nowadays, a large proportion of the world population is being affected by visual refractive errors. The groups of visual defected folks in developed countries are even larger than those in developing countries. An interesting phenomenon is that those visual problems seem to bother well-educated people. According to some eye care professionals, refractive errors are mainly caused by eyestrain and stress which in turn result from excessive eye use.
Based on this theory, the mentioned phenomenon is then explainable. With the increasing number of people who have a refractive error, vision correction options are also on the increase. For those who want to choose eyeglasses, there are both local eye-wear stores and prescription glasses online. Even contact lens users can also have access to those two basic sources. In addition, there are still various newly invented laser eye surgeries, like LASIK, LASEK, PRK and so forth.
In fact, those laser eye procedures listed above have been around for only a few years. There are actually many surgeons and their associated staff who always claim the benefits of those surgical treatments. The most attractive advantage that is advocated widely is that visual correction brought by surgical cure will be permanent, so that corrective eyeglasses and contact lenses are no longer needed postoperatively. But many patients are still under careful consideration, rather than receive an eye surgery immediately. Most of them are still concerned about the potential risks and complications brought by an eye surgical treatment. This is never senseless because even the safest surgery LASIK is sometimes reported with disappointing and even negative outcomes.
Most people who need vision correction will still stay in the realm of corrective eyeglasses and contact lenses. Laser eye surgeries are available only from ophthalmologists. But eyeglasses and contact lenses are widely provided by opticians and optometrists. Moreover, even private physicians and most eye care practitioners are sources of prescription eye-wear. These local sources along with eye-wear stores have remained as the main choice for many years. Since corrective eyeglasses or contacts must be sold under the condition that the customer can offer a valid prescription, those local sources have long been considered as the most trustful options. But in modern days, customers are allowed to purchase prescription contact lenses and prescription eyeglasses online. The only requirement remains intact: a valid, updated prescription. This new channel is benefiting a considerable amount of eye-wear users every year. Lower prices and extra convenience are widely reported.