Contact lenses, also known as lenses, are thin plastic lenses placed directly onto the cornea (the transparent covering of the eye). Contact lenses are very convenient and easy to wear. They are available in a variety of colors, shapes, and sizes. They can even be customized. Contact lenses have been used by more than 150 million people around the globe, and they are worn to correct eye color or for therapeutic or cosmetic reasons.
improving their appearance or changing their eye color
As the popularity of contact lenses has grown, so has the number of manufacturers that have begun to produce and market them. There is a wide range of reasons why some people wear contact lenses instead of glasses. For some individuals, vision correction is an absolute necessity since vision problems related to macular degeneration, presbyopia, and astigmatism often require using contacts. For other individuals, wearing contact lenses is a pleasant means of improving their appearance or of changing their eye color.
may be experiencing refractive errors
To understand how contact lenses work, it is important to know what causes vision problems. One of the most common vision problems is farsightedness. People with this condition experience blurred or double vision. Other vision problems associated with the eyes include strabismus (crossing or turning of the eyes), myopia (nearsightedness), and hyperopia (farsightedness). If any of these conditions are present, then the individual may be experiencing refractive errors.
myopia or hyperopia
Refractive errors occur when the force of two images is trying to contact each other. Force is called upon from the retina through the central lens of the eye. When this happens, the cornea must focus two images onto the same point in space for them to contact and allow for vision. Two of these forces come from nearsightedness or shortsightedness and hyperopia or farsightedness. Individuals who have myopia or hyperopia are often prescribed soft contact lenses. These help to improve an individual’s vision by slightly changing the way that light is refracted.
a new pair of contacts at least once a month
Contact Lenses are available in several styles. A few of these styles are more comfortable for individuals to wear. There are also disposable contacts that can be replaced over after the recommended wearing period. The most popular style of contact lens is called a daily, weekly, and monthly contact lens. All of these require that an individual insert a new pair of contacts at least once a month.
Daily wear lenses require the removal of your current lenses at night while you sleep
You then put in a fresh pair of disposable lenses. To avoid irritation, your doctor may recommend that you rinse your hands before inserting your lenses. You should cleanse your eyes thoroughly before putting your lenses in and you should ensure that you do not sleep with dirty contact lenses in your eyes. These are very easy to care for and will allow you to see better than ever.