Understand how lens designs, coatings, materials and brands affect comfort, thickness, appearance and price.
Crizal Lenses
Coatings, specifications, pricing factors and what to compare.
Open guide βCrizal vs ZEISS Lenses
A practical comparison of two established names.
Open guide βBlue Filter Lenses
Blue cut, anti-glare, computer use and current evidence.
Open guide βProgressive Lenses
Adaptation, fitting and standard vs premium designs.
Open guide βHigh-Index & Thin Lenses
1.56, 1.60, 1.67 and 1.74 explained.
Open guide βAnti-Glare & Lens Coatings
Reflections, durability, cleaning and coating terminology.
Open guide βComputer & Office Lenses
Screen distance, desk work and occupational lens designs.
Open guide βZEISS DuraVision Platinum vs Gold
Compare anti-reflection, cleaning, scratch resistance and lens appearance.
Open guide βWhat these guides are designed to do
Each page explains the topic in plain language, highlights the questions worth asking before purchase, and links back to the wider Education Centre for further research.
For childrenβs spectacles and myopia-control designs, explore Kids & Myopia.
Browse by topic
The Education Centre now groups guides into seven topics. Choose the area closest to your question.