Soft contact lenses are generally more comfortable to wear, they are able to stay in place better and are easier to adjust than hard contact lenses like Rigid Gas Permeable (RGP). The flexible plastic is combined with water to allow oxygen to pass through the contact lens to the cornea, this increases comfort and maintains eye health. Below is a brief comparison of soft and RGP contact lenses.
Soft contact lenses (Colour Circle Lenses) are composed of malleable plastic polymers. They are very flexible and resilient, when fit properly it will form to the cornea (the front surface of the eye), but the life span is short only can last for few months. They are the most commonly worn type of contact lenses in market.
Rigid Gas Permeable (RGP) lenses have been around since the 1960’s, the first contact lenses invented. RGP lenses offer higher tear exchange which giving the advantage of allowing more oxygen to pass through to the eye. They are often referred to as oxygen permeable lenses and are available in extended wear options.