Black lenses - a stylish accessory or enemy of view?
Today, colored lenses, black - this is not only an object for vision correction, but also a stylish accessory. However, before the mid-1990s, contact or scleral lenses were not so widely available.
Initially, optics of this type were developed forpeople suffering from hypersensitivity of the eye. And to this day, with such diseases as micro-ophthalmia, aniridia, keratoconus, transparent degeneration, scleral lenses can not be dispensed with. They are also extremely necessary in case of surgical complications and chemical eye burns. They make them from special polymers, for which good permeability of oxygen is characteristic. Despite the therapeutic effect, the scleral lens, due to the presence of the tunnel effect, is able to distort vision in a person with normal vision. Therefore, the limitations of their wearing include the minimum time (no more than 6 hours a day, or even less) and a ban on driving.
It is known that black lenses are firmly incinematography of the whole world, and the first to use them in Hollywood. But the actors at the same time did not experience much pleasure, since working with such optics means giving an extra load to the eyes, which is very tiring and subsequently impairs vision.
Modern black lenses are safe by acquiringsuch a product, you can be sure that the eye color will change dramatically, but it will look absolutely natural. With these lenses will be convenient in any situation. And except for the black color of the eyes of others, you will not be surprised.
Slight differences in the properties of black lenses onthe whole eye. They are created for various theatrical productions or costume parties, Halloween celebrations or any other entertainment where a significant change in the traditional image is required. Black lenses will help the owner to put the final accents when creating a certain image (for example, an alien or a vampire). Yes, and others will not disregard such a character. For a person who attaches such optics, the perception of the world around him will not change, since the central part of the lens is transparent. However, it is possible to reduce visibility with a sharp dilatation of the pupil. It can be bright sunlight or an excited state. Then part of the pupil falls under the color zone and visibility is slightly limited.
Wearing and caring for such optics as blacklens, does not differ from ordinary. But ophthalmologists say that you can not do without special cosmetics. In addition, you should always pay attention to possible contraindications and the expiration date at the time of purchase.
Despite the fact that for the first time scleral lensesbecame available to the general consumer in the US, today their sale there is illegal. After all, infections that are caused by the use of black lenses, easily cause blindness. We can buy such optics only in the online store. But before buying it is worthwhile to think again. Maybe health is more important? After all, each person has his own physiological characteristics, and what is convenient and comfortable for one is unacceptable for another.