The eye is one of the most important organs in the human body. This is because it presents humans with the divine sense vision. This vision is one of the main reasons responsible for the evolution and success of mankind throughout the history of time. Studies have shown that humans respond or analyze a situation more quickly when it is presented in a pictorial format. This means humans learn and adapt much more efficiently through the information from the sense of vision. In some people, a defect occurs in the eye that leads to the loss of vision after a particular distance. This can be corrected by using either permanent or daily contact lenses.

What is a Contact Lens

A contact lens is a prosthetic medical device used for the purpose of correction of vision in the human eye. These lenses possess some focal power that either adds or subtracts with the current accommodation power of the eyes to correct the particular defect. Its functioning is quite similar to eyeglasses but the mode of application differs. It is designed to be worn directly over the cornea. An eye lens can be of two types permanent or disposable. The features and differences between the two are explained below:

• Permanent- These types of lenses are placed between the iris and lens through surgical methods. This surgical placement ensures that the vision is corrected for life.
• Disposable- Daily contact lenses are the disposable approach towards using contact to correct vision defects. These are easy and convenient to use which is responsible for its trend.