Contact Lenses Types Are Classified
There are different types of functions in all contact lenses, which elaborate the understanding of there to be existence of different types of contact lenses. However, it is very possible for the comprehension and existence of different types of contacts online to be classified in many different ways. The contact lenses have the potential to be separated by their classifications. The classification could be directly related to their primary function, or even the materials they were made of, and the contact lenses wear schedule. The wearing schedule is based on how long the wearer can wear those contact lenses before there is need to remove it. Another thing that plays the role in the classification is the replacement schedule.
This is based on how long it takes before the contact lenses need to be discarded. There are even soft contact lenses, and these are made of both soft and flexible plastic that are allowing the oxygen to pass through to the cornea. It is possible for these soft contact lenses to be easily adjustable, and even more comfortable than the rigid gas permeable lenses. Those soft contact lenses that were modern are also including silicone-hydrogels, which is to provide more oxygen to the wearer’s eyes while these contact lenses were being worn. The contact lenses that were in the class of rigid gas permeable, which are called RGP Contact Lenses. These ones are more durable and even resistant to the deposit buildup, and it generally make a clearer and crisper vision clearer. These RGP contact lenses are known to be cheaper, because they last longer than those of the soft contact lenses.
There are recognitions of it being easier to handle, and there are less chance that these types of contact lenses would tear. However, there are also information that state that the RGP contact lenses were not being as comfortable as the soft contacts. It is also about these types of contact lenses taking up to several week before the wearer could get use to wearing the RGPSs. For the soft contact lenses, it is a several days before the wearer gets use to wearing them. There were extended contact lenses, which were available for either over-night or continuous wear range from one single night to six nights. Furthermore, it is possible for up to 30 days. These are usually soft contact lenses that were made for more flexible plastic, which also allow the oxygen to pass through to the cornea.