Photochromic Contact Lenses: What They Do and Do Not
Contact lenses that darken in sunlight exist and they work — just not the way most people assume. They reduce glare rather than eliminating it, they do not replace sunglasses, and inside a car they barely activate at all. How they work The material carries photochromic molecules that change shape when they absorb ultraviolet light….
Dr. Teresita Bollar, OD
Your Guide to Special Effects Contact Lenses
Welcome to the world of special effects contact lenses—the ultimate tool for anyone serious about cosplay, Halloween, or bringing a character to life. These aren't your standard vision-correcting contacts. Think of them as costume prosthetics, designed to completely transform your eyes and create a truly jaw-dropping effect. A Guide to Transformative Eye Effects It’s best…
Silicone Hydrogel vs Hydrogel: Why Less Water Is Better
Silicone hydrogel lenses hold less water than conventional hydrogels and deliver several times more oxygen. That sounds backwards, and it is the single most useful thing to understand about contact lens materials — because it is also why “high water content” on a box is not the selling point it appears to be. Two different…
What Are Contact Lenses Made Of?
Nearly every soft lens sold today is silicone hydrogel. The material is not a specification-sheet detail — it determines how much oxygen reaches your cornea, how much water the lens loses during the day, and how many hours you can comfortably wear it. The three families 1. Hydrogel HEMA-based polymers saturated with water, between 38%…
Contact Lenses for Sport
For almost every sport, soft daily disposables are the right answer. They stay put, they cost nothing to lose, and there is no case or solution to manage in a changing room — which is where most lens hygiene goes wrong. Why contacts beat glasses in sport Full peripheral vision. Glasses correct only what you…
Switching From Glasses to Contacts: What Changes
The first thing people notice is not sharper vision — it is peripheral vision. Glasses correct only what you look through. Contacts move with your eye, so the whole field is corrected, and that difference is bigger than most people expect. Your glasses prescription will not transfer This surprises people and it is worth understanding…