Compact mode

Essilor Crizal Sapphire vs UltraSlim Featherlight vs Tokai UV420

Table of content

Lens Specifications Comparison
General Information Comparison
Facts Comparison

Optical Properties Comparison
Usage Comparison
Manufacturing Comparison
Features Comparison
Performance Scores Comparison

Lens Specifications Comparison

Lens Type 👁

The category of lens based on its intended use and visual correction purpose

Essilor Crizal Sapphire

Single Vision

The lens type of Essilor Crizal Sapphire is Single Vision. Single vision lenses correct vision for one distance: near, intermediate, or far Click to see all.

UltraSlim Featherlight

High-Index

The lens type of UltraSlim Featherlight is High-Index. Thinner and lighter lenses for high prescriptions without compromising optical quality

Tokai UV420

UV Protection

The lens type of Tokai UV420 is UV Protection. Lenses that shield eyes from harmful ultraviolet rays, enhancing eye health and comfort
Material 🧬

The primary substance used in manufacturing the lens

Essilor Crizal Sapphire

Polycarbonate

The material of Essilor Crizal Sapphire is Polycarbonate. Polycarbonate lenses are impact-resistant and lightweight, ideal for sports and children's eyewear.

UltraSlim Featherlight

1.67 High-Index Plastic

The material of UltraSlim Featherlight is 1.67 High-Index Plastic. Very thin and lightweight lenses for higher prescriptions, enhancing comfort and appearance

Tokai UV420

Trivex

The material of Tokai UV420 is Trivex. Trivex lenses combine lightweight comfort with high impact resistance, suitable for rimless frames.
Lens Coatings 🧱

Protective and enhancing treatments applied to eyeglass lenses, improving durability and visual clarity.

For all*

Anti-Reflective

Lenses with a coating that reduces glare and reflections, improving visual clarity and aesthetics.

Scratch-Resistant

Scratch-resistant coatings protect lenses from everyday wear and tear

UV Protection

UV protection coatings block harmful ultraviolet rays for eye health

Tokai UV420

Blue Light Filter

Tokai UV420 has Blue Light Filter coatings. Lenses with a coating that reduces exposure to blue light from digital screens, potentially reducing eye strain. Click to see all.

General Information Comparison

Price 💰

Price of the eyeglass lenses in USD, indicating the cost for a pair of lenses.

Essilor Crizal Sapphire

200 $

The price of Essilor Crizal Sapphire is $200.

UltraSlim Featherlight

249 $

The price of UltraSlim Featherlight is $249.

Tokai UV420

100 $

The price of Tokai UV420 is $100.
Price Range 💱

Classification of eyeglass lenses based on price ranges, helping customers find options within their budget.

Essilor Crizal Sapphire

$200-$300

Essilor Crizal Sapphire falls into the $200-$300 price range. Eyeglass lenses in the $200-$300 range offer advanced features and high-quality materials

UltraSlim Featherlight

$200-$300

UltraSlim Featherlight falls into the $200-$300 price range. Eyeglass lenses in the $200-$300 range offer advanced features and high-quality materials

Tokai UV420

$100-$200

Tokai UV420 falls into the $100-$200 price range.
Known for 💡

A unique feature or characteristic that distinguishes the eyeglass lens from others.

Essilor Crizal Sapphire

Clarity

Essilor Crizal Sapphire is known for Clarity.

UltraSlim Featherlight

Lightweight And Thin Design

UltraSlim Featherlight is known for Lightweight And Thin Design.

Tokai UV420

UV Defense

Tokai UV420 is known for UV Defense.

Facts Comparison

Interesting Fact 🧐

An intriguing or lesser-known fact about the eyeglass lenses or their technology.

Essilor Crizal Sapphire

Crizal lenses reduce glare by up to 30% compared to other AR coatings.

UltraSlim Featherlight

Weighs 40% less than standard plastic lenses

Tokai UV420

Tokai UV420 lenses can block UV rays up to 420nm wavelength.
Sarcastic Fact 😉

A humorous or sarcastic observation about the eyeglass lenses.

Essilor Crizal Sapphire

You'll see so clearly you might start noticing things you wish you hadn't.

UltraSlim Featherlight

So light you might forget you're wearing them (seriously)

Tokai UV420

These lenses are like sunscreen for your eyes - but you don't have to reapply every 2 hours!

Optical Properties Comparison

Index of Refraction 💡

The measure of how much light is bent when passing through the lens

Essilor Crizal Sapphire

1.59

The index of refraction for Essilor Crizal Sapphire is 1.59. Click to see all.

UltraSlim Featherlight

1.67

The index of refraction for UltraSlim Featherlight is 1.67. Click to see all.

Tokai UV420

1.53

The index of refraction for Tokai UV420 is 1.53. Click to see all.
Index of Refraction Type 📊

Classification of the lens based on its refractive index

Essilor Crizal Sapphire

Mid-Index

The index of refraction type of Essilor Crizal Sapphire is Mid-Index. Balanced lenses offering improved thinness for moderate prescriptions at a reasonable cost. Click to see all.

UltraSlim Featherlight

High

The index of refraction type of UltraSlim Featherlight is High. Thinner and lighter lenses suitable for strong prescriptions, providing improved aesthetics and comfort. Click to see all.

Tokai UV420

Low-Index

The index of refraction type of Tokai UV420 is Low-Index. Basic lenses suitable for mild prescriptions, offering affordability and durability. Click to see all.
Prescription Type 👓

Types of vision correction the eyeglass lenses are designed to address.

For all*

Nearsightedness (Myopia)

Lenses that correct close vision, allowing clear focus on distant objects and improving overall sight.

Farsightedness (Hyperopia)

Lenses that correct distant vision, allowing clear focus on far objects and improving near vision.

UltraSlim Featherlight

High Prescriptions

UltraSlim Featherlight is designed for High Prescriptions prescriptions. Specialized lenses for strong vision correction, offering clarity and comfort for extreme refractive errors.

Astigmatism

UltraSlim Featherlight is designed for Astigmatism prescriptions. Specialized lenses that correct vision distortion caused by an irregularly shaped cornea or lens.

Tokai UV420

All Types

Tokai UV420 is designed for All Types prescriptions. Versatile lenses suitable for various vision needs, offering clarity across different prescription requirements.

Usage Comparison

Manufacturing Comparison

Made In 🌍

The country of origin or manufacture for the eyeglass lenses.

Essilor Crizal Sapphire

France

Essilor Crizal Sapphire is made in France. Premium lenses crafted in France, known for sophisticated technology and style

UltraSlim Featherlight

Switzerland

UltraSlim Featherlight is made in Switzerland. Precision-crafted lenses from Switzerland, known for superior quality and accuracy

Tokai UV420

Japan

Tokai UV420 is made in Japan. High-tech lenses from Japan, known for precision and advanced materials

Features Comparison

Pros 👍

Advantages and positive features of the eyeglass lenses.

Essilor Crizal Sapphire

Superior Clarity

Reduced Glare

Lenses that minimize reflections and glare from various light sources.

UltraSlim Featherlight

Very Thin And Light

Suitable For High Prescriptions

Durable

Tough and long-lasting lenses that resist scratches and impacts, ideal for active lifestyles.

Very Thin And Lightweight

Reduced Magnification Effect

Improved Aesthetics

Lenses that enhance the overall appearance of glasses, making them more attractive.

Tokai UV420

Blocks Harmful UV Rays

Lenses that effectively filter out harmful ultraviolet radiation, protecting eyes from sun damage.

Lightweight

Lenses that are exceptionally light, providing comfort for extended wear.

Blocks Up To 420Nm Of Blue Light

Specialized lenses that filter out blue light wavelengths up to 420nm, potentially reducing digital eye strain.

Reduces Eye Strain

Blocks Up To 420Nm Of UV Light

Impact-Resistant

Lenses that can withstand impacts, reducing the risk of shattering and eye injuries.
Cons 👎

Disadvantages or limitations of the eyeglass lenses.

Essilor Crizal Sapphire

Expensive

Requires Careful Cleaning

Lenses needing gentle, specific cleaning methods to maintain quality and avoid damage. Click to see all.

UltraSlim Featherlight

Expensive

Requires Careful Handling

Requires Precise Fitting

Lenses needing exact measurements and adjustments for optimal performance, potentially limiting DIY options. Click to see all.

Tokai UV420

Limited Style Options

Slight Tint

Slight Yellow Tint

Higher Price Point

Slightly Thicker Than High-Index Lenses

Lenses marginally thicker than high-index options, potentially affecting aesthetics in certain frames. Click to see all.