The Rawbare Journal
Lens Index Explained: 1.50, 1.61, 1.67 and 1.74
A reference guide to refractive index in prescription lenses: what the number means, how it changes thickness, and how to match index to power.
Presbyopia: Why Near Vision Changes After 40
A plain explanation of presbyopia: what causes it, why it is universal, how it differs from long sight, and the correction options available.
Progressive vs Bifocal vs Single Vision Lenses
A comparison of the three main prescription lens designs, the trade-offs of each, and practical guidance on choosing and adapting.
Contact Lenses vs Glasses vs LASIK: How to Decide
A neutral comparison of glasses, contact lenses and laser vision correction across daily practicality, risk, maintenance and who each suits.
