from the world leading manufacturers such as Bausch & Lomb
, CIBA Visison
are coming soon.
It has been estimated that about 125 million people use contact lenses
worldwide including 38 million in the United States.
There are different type of contacts
: corrective and cosmetic, rigid and soft, bifocal, toric and aspheric, daily and extended wear contact lenses
Not all people are good candidates for contact lens
wear. A thorough examination of the eye is essential before contact lens
fitting can be considered. This should include refraction, a careful examination in all parts of the eye; measure the curvature of the cornea and tears measurement test. If your eyes too dry, the risk of eye infection is high. If the eye specialist determines that you are a candidate for contact lenses
, the next step is the actual fitting of the lenses.
can be considered as a good alternitive to prescription glasses
, and sunglasses
but be sure you really want to wear contact lenses
and you are motivated enough to comply fully with the lens
A contact lens
can be characterised by:
- Contact Lens Base Curve Radius (BC, BCR)
Typical values are from 7.9 to 9.3 mm. The base curve is the radius of the sphere that the back of the contact lens describes.
- Contact Lens Diameter (D, OAD)
- Contact Lens Power (Dioptres - Spherical, Cylindrical and/or reading addition)
- Contact Lens Cylinder axis
- Contact Lens Centre Thickness (CT)
- Contact Lens Material (eg. Oxygen Permeability/Transmissibility (Dk/L, Dk/t), water content, modulus)