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Lenses Introduction

Lens Usage
1. Single-Vision Lenses
Single Vision lenses are the standard eyeglass prescription. These glasses have only one viewing area throughout the entire lens and the correctional area can be for distance, reading or intermediate.

Distance - If you wear glasses all day, but don't have bi/varifocals or mostly need these glasses to see things in the distance.

Reading - If you need to read things close to you.

Intermediate - If you mostly need these glasses for working on the computer or something else at arms length.
2. Bifocal Lenses With A Line
A bifocal lens means a lens with two points of focus. A small portion of the eyeglasses lens is reserved for the near-vision correction. The rest of the lens is usually a distance correction.
3. Progressive Lenses - No Line
Progressive lenses are the closest to how natural vision is that you can get in a pair of prescription eyeglasses.

They are more than just a defined near and distance correction in one lens. Rather, progressives provide a smooth transition from distance through intermediate to near, with all the in-between corrections included as well.

This constant graduation of the prescription means that you can look up to see in the distance, look ahead to view your computer in the intermediate zone, and drop your gaze downward to read and do fine work comfortably close up.
4. Prism Lens
Prism glasses feature lenses designed to correct double vision caused by underlying medical issues. If you need them, your prescription will feature numbers telling us how to shape your lenses to correct your vision.
Lens Type
Eyeglasses
Sunglasses
Digital screen protection
Lenses are ideal for all spectacle wearers, especially office workers and individuals who spend prolonged hours using digital devices. With or without a prescription, protect your eyes with a pair of blue-blocking glasses. Help shield your eyes from harmful blue light and reduce eyestrain.

(1) Blue Block Lenses help reduce exposure to Harmful Blue Light emitted from digital devices.
Learn more about blue block lenses.

(2) With our blue light blocking glasses, you can enjoy your screen time and preserve your eyesight.
Learn more about Blue Block Pro.
Photochromic
Lenses that automatically darken from the UV rays of the sun when you go outside! Same quality as your doctor’s office.
Learn more.
Transitions ®
Transitions ® VII Lenses are brand photochromic lenses, which contain patented photochromic dyes. They are the smartest choice for your everyday lenses offering everything you need in a corrective lens:

• Visual acuity
• Visual comfort
• Convenient protection from the harmful effects of UV radiation and glare.

Learn more.
Tint
If our selection of sunglasses isn't enough for you, our color-tint coatings let you create your own. We offer 6 colors for you to choose from. Besides, another tint lens called gradient tint which start as dark tint at the top of a lens and then progressively lighten toward its bottom.
Learn more.
Mirrored Lens
Mirrored sunglasses are sunglasses with a reflective optical coating on the outside of the lenses to make them appear like small mirrors. They are gaining popularity in high fashion as well as sport performance spheres.
Learn more.
Polarized
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.
Learn more.
Eyeglasses
Blue block
Blue Block Lenses help reduce exposure to Harmful Blue Light emitted from digital devices. Learn more.
Blue block pro
Blue Light Blocking Pro, with anti-glare coating and super hydrophobic coating. It could prevent damage of harmful blue light and glare to increase eye comfort. Learn more.
Photochromic
Lenses that automatically darken from the UV rays of the sun when you go outside! Same quality as your doctor’s office. Learn more.
Transitions
Transitions ® VII Lenses are brand photochromic lenses, which contain patented photochromic dyes. Learn more.
Sunglasses
Tint
If our selection of sunglasses isn't enough for you, our color-tint coatings let you create your own. We offer 6 colors for you to choose from. Learn more.
Mirrored Lens
Mirrored sunglasses are sunglasses with a reflective optical coating on the outside of the lenses to make them appear like small mirrors. Learn more.
Polarized
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. Learn more.
Lens Index
Index
What is index?
Lens index is a number that describes how thick or thin your
lenses are. The higher a lens' index is, the thinner it becomes.
Higher prescriptions require higher index lenses, while lower
prescriptions require lower index lenses.
Lens Index
Lens Thickness Comparison.
Prescription Strength
The higher a lens' index is, the thinner it becomes.
Lens thickness comparison
1.50
1.57
1.59
1.61
1.67
1.74
Prescription Strength
The higher a lens' index is, the thinner it becomes.
Features
These lenses are available starting from $0.
Recommend Rx Range
SPH (0 to +/-2.0), CYL (0 to +/-1.5).
Features
Thinner and lighter than standard lenses.
Recommend Rx Range
SPH (0 to +/-2.0), CYL (0 to +/-1.5).
Features
These lenses are made of special Polycarbonate material.
Recommend Rx Range
SPH (+/-2.0 to +/-4.0), CYL (+/-1.5 to +/-2.0)
Features
Thin & Light lenses offer the best value for people who have moderate prescriptions and want a light lens.
Recommend Rx Range
SPH (+/-4.0 to +/-6.0), CYL (+/-2.25 to +/-3.0).
Features
These lenses are great for people with moderate-to-high prescriptions.
Recommend Rx Range
SPH (+/-6.0 to +/-9.0), CYL (+/-3.25 to +/-4.0).
Features
The thinnest and lightest lenses available on the optical market.
Recommend Rx Range
SPH (above +/-9.0), CYL (above +/-4.25).
Lens Coatings
Anti-Scratch Coating
It helps to prevent minor scratches that can easily happen to a regular lens. An anti-scratch coating acts as a protective layer thus making the lenses more durable.
Anti-Reflective Coating
Some of the light passes through the lens, this is called refraction, some is absorbed and converted into heat energy (very small amounts) and the rest bounces off. When light bounces off the lens this creates glare. Glare or reflections can be annoying and in some severe cases can decrease visual acuity. To improve both the vision through the lenses and the appearance of the glasses, an anti-reflective coating (also called AR coating) is applied.
UV Protective Coating
UV Coating is a beneficial lens treatment. It is an invisible dye that blocks ultraviolet (UV) light. Just as sunscreen keeps the sun's UV rays from harming your skin, UV-protective treatments for eyeglasses lenses block those same rays from damaging your eyes.
Super Hydrophobic Coating
Super Hydrophobic (water resistant) coating keeps water drop, dirt, and smudges off your lenses while making them easier to clean. Lenses with this premium coating stay sparkling twice as long.
Anti-Scratch Coating
It helps to prevent minor scratches that can easily happen to a regular lens. An anti-scratch coating acts as a protective layer thus making the lenses more durable.
Anti-Reflective Coating
When light bounces off the lens this creates glare. To improve both the vision through the lenses and the appearance of the glasses, an anti-reflective coating is applied.
UV Protective Coating
UV Coating is a beneficial lens treatment. It is an invisible dye that blocks ultraviolet (UV) light.
Super Hydrophobic Coating
Super Hydrophobic (water resistant) coating keeps water drop, dirt, and smudges off your lenses while making them easier to clean.