Colored contact lenses - it is an effective and apparently easy way to quickly change the appearance. Once they were used mainly in the industry, but now not only the characters, such as "Twilight" can instantly change the natural eye color to gold, red, or any other.
In just a few years, sales of colored lenses rose 20%, and is likely to continue to grow. Manufacturers are oriented primarily at young people, offering the lenses are not only blue, green, black and other more or less natural colors, but also the lens, for example, with the image of the Jolly Roger, flames, feline pupils, and so on.
However, the next fashion trend is a significant risk. Even lenses that do not correct vision, but only change the color of the iris, should be chosen with the help of an ophthalmologist. However, many teenagers and even adults who buy lenses online, without prior consultation with a specialist. Moreover, doctors say that young people exchange color lenses with each other and even the color of vegetable dyes - all this, of course, does not make the wearing of colored lenses
Colored lenses: how to learn to "make eyes"
Generally, all wearing contact lenses is associated with certain risks. However, some people believe that because the color lenses do not correct vision and are used for cosmetic purposes, they can buy and wear, without consulting a doctor. In fact, the colored lenses are made from the same material as that of conventional lenses, and are the same as elements alien to the cornea.
Careful selection of lenses with the help of a professional significantly reduces the risk of complications.
The most serious risk associated with buying colored contact lenses without a prescription - an infection. The effects of bacterial infection can be very serious - until the vision loss and the need for corneal transplantation. The bacteria may be on the lenses stored in damaged packages or produced under conditions that do not meet the standard requirements. Improper cleaning of lenses can also cause bacterial infection. Consultation is necessary also because it will tell you how to properly care for the lenses, insert and remove them.
The size of the lens is also important. Improper size of the lens can damage the cornea and vision loss.
According to doctors, a serious eye infection develops in only four out of every 10,000 people wearing colored lenses. However, for someone who will be one of the four, is it does not matter that the other 9996 people are living happily with her new eye color. To avoid severe complications, only need to spend a little time on a visit to the doctor.
Types of contact lenses
Colored contact lenses - date fashion accessory for women with good vision who want to temporarily change the color of their eyes. Contact lenses allow you to change the boring blue tint to the intriguing nut-brown or even a bottomless black. They are used both in cosmetic and medical purposes.
When buying contact lenses you have a choice between hard and soft lenses. Bifocal and Toric lenses are used for correcting some visual impairment. Contact lenses with special effects used for entertainment, such as Halloween, as well as in film and theater. With these lenses you can create a magnetic gaze vampire whether to turn pupils into fireballs.
Cosmetic contact lenses
Contact lenses - concave plastic disks covering the cornea. Cosmetic contact lenses function as glasses and replace them. Wearing cosmetic contact lenses can people aged 10 to 70 years. When choosing a lens be sure to take into account the age and lifestyle.
The first hard contact lenses - lenses of polymethylmethacrylate (PMMA-lens). They were distinguished by exceptional durability and reliability, but blocked the access of oxygen to the cornea. Today, such contact lenses - a rarity. As a rule, it is now the most common rigid gas permeable lenses (RGP-lenses). Such lenses are better retain their shape cornea than soft lenses, perfectly correcting weaknesses of view, but harder to get used to them than to soft lenses. Some preferred solid-RGP lenses, because they have better optical characteristics. RGP-lenses are more durable and protected from the accumulation of the protein. Hard RGP-lenses are made on the basis of silicone polymers which provide the flow of oxygen to the cornea.
Soft contact lenses are made from a flexible plastic, with a moisture content of up to 90%. Such lenses are also called hydrophilic or hydrogel. Hydrophilic lenses are more fragile and need special care and regular cleansing.
In 1987 he appeared on the market short-term contact lens wear, which caused a real revolution in terms of health, hygiene and convenience
. If the traditional contact lenses had to be replaced every six months or a year, short of wearing lenses can be thrown away after a couple of weeks
. Mass production of high-quality lenses will reduce the cost of lenses that made "liquid glasses" more accessible to different groups of population
. Furthermore, inexpensive lens can be frequently changed
. Lens wearing short perfect for people suffering from ocular allergy, who have to spend big money on contact lenses
. Moreover, short-term lens wear - ideal for those who have increased sensitivity to solutions for cleaning lenses
. Such lenses may eventually prove to be more expensive than conventional lenses, but you will save significantly on cleaning solutions
. The only drawback of such lenses - ultra-thinness
. Lens wearing short and do not correct astigmatism
Colored contact lenses
Colored contact lenses are colored only to an insignificant degree. Coating lens serves to make it easier to insert and remove them. Typically, the color of the contact lens a little darker than the natural color of the human eye. With the help of lenses can emphasize eye color, make it deeper, but look - a more attractive and hypnotic. Colored contact lenses can also radically change your eye color. You can experiment with bright blue, dark brown or green exotic lenses. For athletes manufactures special contact lenses through which they can quickly distinguish the ball in a kaleidoscope of moving objects and bright colors.
Toric contact lenses
Toric contact lenses differ from conventional lenses. The toric lens has two protuberances arranged at different angles, which astigmatism
Astigmatism - lenses, glasses or surgery?
and improve visual acuity. Wearing toric lenses recommended for both reasons. Such lenses are best kept in the eyes and do not rotate. If you are going to buy toric contact lenses, contact your eye doctor because they are available only by prescription. There are toric lenses short and wearing lenses that should be changed frequently, hard (RGP-lenses) and soft lenses. Also on sale are color toric contact lenses designed for people suffering from astigmatism.
Bifocal contact lenses are ideal for people who suffer from presbyopia (presbyopia). Such lenses combine two properties - they are correcting both hyperopia
Hyperopia - than it is fraught?
Myopia - when visual acuity falls
. There are soft bifocal lens and lens-type RGP. Bifocal lenses may have a concentric structure in which the central region of the lens corrects farsightedness, and peripheral - nearsightedness, or vice versa.