Lens Types

Single Vision lenses
Lenses with one focus point which can be used for one distance; Whether long distance, Mid distance (including computer screen viewing distance), or near/reading distance.
Bifocal lenses
Lenses with two focal points which can be used for near and far distance viewing. Generally, Bifocal lenses are worn by presbyopic people due to lack of elasticity of their aging eyes' crystalline lenses; causing difficulties in reading / seeing in near distances.
Progressive lenses
These Lenses are worn by presbyopic people with difficulties reading / viewing near distances due to age factor. They have multiple focal points to aid far, mid, and near distance viewings.
Office lenses
Office lenses are special lenses for medium and near distances. These lenses are suitable for people with presbyopic people who require optimal viewing for distances ranging from 40cm to 2m.
Fatigue Free lenses
Lenses with accomodation support that functions to help the eyes relax during reading activities. Highly suitable for people who spend a lot of time reading and other activities that require short distance viewing. These lenses are only suitable for those who are not presbyopic (below 40 years old)

Lens Materials

Plastic lenses
Plastic is the most common material for lenses because of their lightness and durability. They are available clear, colored, and aspheric.
Glass lenses
These lenses are made of Crown glass as well as flint glass. Generally, glass lenses are thinner, heavier, more scratch resistant, and possess a higher clarity compared to their plastic counterparts.
Blue Light Shield lenses
Lenses with special material which blocks blue light radiation from the sun, computer and gadget screens, as well as other digital devices. Long-term exposure to blue light could increase the risk of acquiring AMD (Age-related Macular Degeneration)

Lens Colors

Photochromic lenses
Photochromic lenses transition to darker color while exposed to sun ligjt and automatically return to clear while indoors; providing excellent protection against UV lights and comfort while being used outdoors.
Polarized lenses
Polarized lenses are coated with a special chemical film that helps reduce glare which is sun light reflection from water or solid surfaces. By neutralizing glare, polarized lenses help you see objects more clearly, and also help reduce the harmful effects of UV light.
DriveWear lenses
Lenses that combine both photochromic and polarized technology which darken to dark brown color while coming in contact with sunlight. Due to their adaptive nature and glare reducing ability these lenses are highly suitable for outdoor activities such as driving, golfing, fishing and many more.
Tinted lenses
These lenses undergo special tinting process to shield the eyes from sun light during day time. They are usually made for sunglasses.