​1. Single vision lenses

Single vision lenses have the same power across the entire lens. It can correct myopia (short-sightedness), hyperopia (long- sightedness) and astigmatism.

​2. Bifocal lenses

Bifocal lenses, or commonly known as Bifocals correct both far and near vision and have a visible dividing line.

3. Progressive lenses

Progressive lenses correct vision at far, near and intermediate distances with no visible dividing lines. Progressive lenses are gaining popularity among the presbyopes (those above 40 who have difficulty reading up close) as the lenses are cosmetically more appealing (look like single vision lenses) and are able to cater to their visual needs.

1. CR-39 and High-index Plastic

CR-39 is a plastic polymer and a popular material for spectacle lenses due to its light weight and good optical quality. However, one of its disadvantages would be the low refractive index of 1.498 which makes the lenses thicker for high prescriptions.

Therefore higher refractive indices such as 1.56, 1.61, 1.67 and 1.74 are available for wearers who prefer thinner lenses.

2. Polycarbonate

Polycarbonate has great impact resistant properties and therefore used for helmet visors and safety glasses. On top of that it is lighter than CR-39 plastic and provides 100% UV protection. Hence it is ideal for kids as well as active adults.

3. Glass

Glass lenses have superior optical qualities, are scratch resistant and thinner than CR-39 plastic lenses. However they are not commonly used due to its weight and will break more easily than plastic.

1. Anti-reflective (AR) coating

AR coating is a microscopically thin multi-layer coating treated chemically on lens surface to eliminate reflections from the front and back surfaces of spectacle lenses. With AR coating, reflections from your spectacle lenses will be minimized when taking photographs and your vision will also be enhanced from the reduced reflections.

2. Blue-light filter

Blue light generally is defined as visible light ranging from 380 to 500nm, and sometimes further broken down into blue-violet light (380-450nm) and blue-turquoise light (450 to 500nm). Sunlight is the main source of blue light but nowadays there are many man-made indoor sources of blue light such as fluorescent and LED lighting, flat-screen televisions and the displays screens of digital devices such as laptops and tablets.

Due to the long hours spent on digital screens and the close proximity of these screens to the user’s face, blue-light filters could help to prevent the long-term effects of blue light on eye health.

3. Photochromic/ Light responsive lenses

Photochromic lenses darken when exposed to sunlight, particularly to ultraviolet rays and turn clear when the wearer return indoors. When darkened, the lenses absorb the light and protect wearer’s eyes from the sun’s damaging rays.

4. Tinted lenses

Lenses can be tinted to various colours for fashion or to improve how wearer sees under certain conditions such as playing sports or driving by improving contrast and depth perception.

5. Polarised lenses

Polarized lenses have a special filter that blocks off horizontal light rays, eliminating glare from horizontal surfaces such as reflected light on water surface, cars or other shiny surfaces. Polarized lenses are ideal for wearers involved in fishing, sailing and skiing.

6. Anti-fog coating

Lens fogging have become a problem for many spectacle wearers during the COVID-19 pandemic due to the wearing of masks. The anti-fogging property of the lens can be in the form of a spray or coatings to reduce the condensation of moisture on lenses that causes fogging.