Fed up of wearing glasses shift to contact lenses, they are good, comfortable and cheap. The number of sites offering discount contact lenses is just increasing at a very fast rate, it is foolish to give up the opportunity of buying these discount contact lenses.
There are basically two options soft and RGP contact lenses, the soft are comfortable but RGB will give crisper and sharper vision.
Toric contact lenses are prescribed for people who suffer from astigmatism, this is a condition in which the cornea of the eye is unevenly shaped. For many years these guys had to wear RGP or hard contact lenses, but now with toric gas permeable they can also wear soft lenses.
The cornea or the front of the eye is the only part of the human body that derives oxygen from the air, thus it has no blood vessels. When contact lenses are worn on this portion of the eye it cuts the supply of oxygen, this can lead to neovascularization that is development of new vessels in the cornea leading to blurring of vision.
Contact Lens Users Have To Follow Some Safety Tips:
- Avoid wearing coloured lenses unless prescribed and monitored by an eye doctor. The colour reduces the amount of oxygen reaching the cornea.
- There are greater chances of developing corneal ulcers if you have your contact lenses in overnight, if you are using overnight lenses be sure to keep checking your eyes for any redness or swelling.
- Hygiene is extremely important when using contact lenses, be sure to clean and store your lenses careful and use only prescribed solutions for cleaning.
- Never wet the contact lenses with your saliva which has many bacteria responsible for infections.
- Never wear the contact lenses for beyond the time limit prescribed by the manufacturer; this will only increase your risk of infection.
Acuvue contact lenses by Johnson and Johnson are the best in the market and have the maximum variety; they have bifocal contact lenses and even toric lenses. If your prescription is too complicated you will have to use made to order contact lenses you cannot buy these over the counter.