Children too spend extended amounts of time in front of televisions, I-Pads and computer screens. Subsequently, individuals end up with Myopia (Near sightedness) or Hyperopia (Far sightedness). However, both these disorders related to vision can easily be corrected with spectacles. But, how many of you like to wear spectacles? Not all of us though! This is where contact lenses come into picture.
Types of Contact lens:
Soft Contact lens–These lenses are prepared from a soft flexible plastic that allows for the easy follow of oxygen trough the cornea. These lens are comfortable to wear and easy to adjust on the cornea. Users usually claim that soft contact lenses are so comfortable that one may even forget that he or she is wearing them. The newest and latest material being used in the manufacturing of soft contact lenses is silicon hydrogel. This material provides more oxygen to the eye allowing the user to wear the lenses for longer duration of time with minimum discomfort.
Rigid Glass Permeable (RPG) Contact lenses-The glass permeable lens provide crisp and clear vision. They are more durable and do not allow the build-up of residue very easily. As they last longer than the other lenses, they are more cost effective. RPG lenses are more easily managed as they do not tear as easily as soft contact lenses. The only drawback of the RPG lenses is that they are not as comfy to wear as the soft contact lenses. A new user may require several weeks before he or she can adjust to wearing them every day. Soft contact lens users can adjust to these lenses within a couple of days only.
Extended Wear Contact Lenses–Acuvue Contacts No Prescription contact lenses for extended wear are usually soft contact lenses made from material that allows for the easy flow of oxygen to the cornea. These lenses are usually used by consumers who wish to wear contact lenses overnight. Their duration for wearing may range from 1 to about 6 nights and go up to a maximum of thirty days. Certain types of rigid glass permeable lenses are made for long duration or overnight wear but users need to first check their individual eye capacity before opting for these lenses. An ophthalmologist’s thorough analysis of the eye will help determine the user’s tolerance levels for overnight usage. The eyes have to be allowed a rest time without lenses for at least twenty four hours in between each period of prolonged lens usage.
Disposable Contact Lenses- This category of soft contact lenses have become the most common in today’s day and age. Depending on what kind a user opts for, the duration may vary from everyday disposable ones to those that may be used for up to thirty days.