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UV400 vs UV420 Lenses: What's the Difference and Which Do You Need?

2026-09-20 14:23

Protecting your eyes from harmful radiation has evolved beyond standard sunglasses. If you are shopping for prescription eyewear, computer glasses, or sun protection, you have likely come across two...
Standard Medical Refraction Procedure

2026-09-20 14:52

Standard medical refraction differs from basic auto-refraction. The entire process consists of five core steps: preliminary examination, objective refraction, subjective refinement, visual function ...
The 6 Most Common Mistakes in Eye Exams and Eyeglass Prescriptions

2026-09-20 14:53

Many common problems with getting eyeglasses stem from misunderstandings about eye exams and vision correction. These mistakes can directly result in inaccurate prescriptions and uncomfortable glass...
1.5 vs 1.59 Index Lenses: Which One Is the Better Choice for Your Glasses?

2026-09-20 14:54

When shopping for prescription glasses, lens material is just as important as the frame. Two of the most common options are 1.50 index lenses and 1.59 index lenses. Although their refractive index v...
Frequently Asked Questions About Eyeglass Lenses Concerned by Spectacle Wearers

2026-09-20 14:55

1. What is the difference between high-index lenses and regular lenses? Answer: High-index lenses are also known as ultra-thin lenses, generally with a refractive index above 1.70. Regular lenses fe...

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