Nirisha Optics Private Limited

Two prescriptions in one lens. Whether you're reading a book, watching TV or driving, with bifocal lenses you only ever need one pair of glasses.

• Combination lens for both distance and reading
• No need for two pairs of glasses
• Choice of D-segment or full width divide.

Introducing high effeciency multilayer broad band Anti reflection coating.which 99% refelection free.feel it as if no lens in frame. gives excellent cosmetic natural look remove the effect of high power lenses popularly called 'SODA BOTTLE' effect.

- Total fitting height 17mm

- Aspheric design in minimum distortion at the edges.

- Best for small frames and fashion concious people.

Polarized lenses are used in sunglasses to reduce glare from reflective surfaces such as the surface of a lake or the hood of a car. They accomplish this feat through a process called polarization, much like a venetian blind controls sunlight through a window.

Sunlight itself is not polarized - light from the sun will either be absorbed or reflected horizontally, diagonally or vertically. The problem this causes for fishermen and drivers lies in the horizontal reflectivity. Sunlight bouncing off a horizontal surface will strike the viewer's eyes at a similar angle. This means the glare from the surface of the water or the road or the car hood will be strong. Polarized lenses have a laminated surface containing vertical stripes. These stripes only allow vertically-polarized light to enter the wearer's eyes. Glare is eliminated because the horizontally-polarized lightwaves cannot bypass the polarized filter.