Contact Lens

Introduction Ultraviolet (UV) radiation from the sun is a well-known environmental hazard that can damage the eyes over time. Prolonged exposure to UV rays has been linked to various eye…

History- A scleral lens is a prototypical lens dating back to the early 1880s. Originally these lenses were designed by using a substance to take a mold of the eye.…

Contact lenses are a popular alternative to traditional eyeglasses for people who require vision correction. They are small, thin and curved lenses that are placed directly on the surface of…

contact lenses, or simply contacts, are thin lenses placed directly on the surface of eye. a contact lens is a thin, curved lens placed on the film of tears that…

The teaching area should have a table where the instructor sits facing the patient. There should be a mirror, a tray and some lint free tissue papers on this table.…

Mainly two toric lense are popular , soft toric lens and rigid gas permeable lens .  Toric RGP lens  (Front surface toric Rigid gas permeable lens ) :- These lenses…

Multifocal contact lenses contact lenses with multiple prescriptions all in one lens is typically a prescription for very close objects: one prescription for normal objects viewed at a distance, and then prescriptions…

As technology improve the material and designs of CL wear as benefit from greater flexibility and more choices. Extended wear contacts are, most typically, contact lenses that can be worn…

Astigmatism is a type of refractive error where in the refraction varies in different meridian.  Consequently ,the  rays of light entering the eye cannot converge to a point focus but…

KNAPP’S LAW :  When a correcting lens is so placed before the eye that its second principle point coincides with the anterior focal point of an axially ametropic eye ,the…