Are Eye Contact Lenses Safe?

Before going into their safety, what exactly do you know about eye contact lenses? Well, let us begin from the definition of eye contact lenses. An eye contact lens could be referred to as a prosthetic device of very thin nature placed directly on the surface of the eye. Currently, an astonishing estimate of over 150 million people uses eye contact lenses today in various forms and for numerous reasons. What are the types of contacts and how does one make use of these contact lenses properly? These are also vital questions which we will be answering during the article.
There are different types and classifications of eye contact lenses. They can be classified based on uses or function. Based on this, eye contact lenses cold be classified in medical, therapeutic and cosmetic or costume uses. The medical eye contact lenses known more formally as prescription contact lenses are those that are worn to correct certain eye defects. Not everyone feels that normal glasses suit them and theses ones have the option of using eye contact lenses. After carrying out the required eye tests and exercises, if a person is found to be suited to wearing contacts, specified contacts would be made for the person to carry out either corrective or therapeutic effects. Contact lenses are useful in the treatment and correction of several eye defects (at times even more suitable than normal medicated glasses). But at times, glasses are preferred to prescriptions eye contacts.
They could also be classified based on texture or material used in making the lens. Here we have rigid and soft lenses. Rigid eye contact lenses are not very comfortable due to their rigid or hard nature and thus are not widespread. They are especially disadvantageous as they do not allow oxygen to pass through the cornea. They are rarely used except in special cases. While soft contacts are highly comfortable and more adapted to the human eyes. They are so comfortable that they have been recommended for overnight usage (while sleeping) in the case of those wearing then for extended periods for medical purposes.
They can be classified based on their wear schedule. We have the daily wear eye contact lenses, the extended wear eye contacts and the continuous wear eye contacts. The daily wear or DW as the name implies, need to be worn for one day and removed before going to bed. the extended wear or EW can be worn to go to bed or sleep with. It can be used for as long as six consecutive nights or one week before needing replacing. While the continuous wear or CW is just a type of extended wear that permits a longer duration of usage (as long as 30 consecutive nights).
Proper eye contact hygiene dictates that one should properly wash his or her hands before picking the contacts to insert into the eye. The soap should not contain moisturizers. Try to clean the contacts regularly (ask your physician how). Finally, buy from a certified source.
By following the guidelines and obeying the physician` instructions (if any) then, of course, eye contact lenses are safe.