Buying Guides
Reordering OLENS ViVi Ring Brown: 1Day 20p or Monthly?
Find the exact ViVi Ring Brown version from an old order or box. Daily and monthly packs share a 13.0 mm graphic...
A closer look at colored contacts
Lens Journal: Buying Guides
Product comparisons, design details and practical guides to help you choose with confidence.
Buying Guides
Canna Roze Prescription Options: Check Your Exact Power Before Ordering
A 0.00 to −10.00 range does not confirm every selectable power. Check the full Canna Roze version, color, availability and each eye’s...
Buying Guides
Same Base Curve, Different Contacts: How to Check a Backup Lens
Yurial Royal Brown and iWWi Iwwing Black share three listed dimensions. See why a matching 8.6 mm base curve cannot identify an...
Buying Guides
Canna Roze Daily vs Monthly: Cost per Pair for Occasional Wear
Compare Canna Roze Beige Brown by two-eye use: daily lenses consumed, whole boxes purchased and monthly care costs. Different eye powers change...
Buying Guides
Different Powers in Each Eye: How Many Contact Lens Boxes to Buy?
A one-piece box and a two-piece box need different calculations when left and right powers differ. Use Canna Roze and ViVi Ring...
Buying Guides
10p, 20p and 30p Contacts: Lenses, Pairs and Two-Eye Supply
A 10p box contains ten individual lenses, not ten pairs. Calculate daily-lens supply for matching or different eye powers and keep monthly...