Hard vs. Soft Contact Lenses: Which Are Better?
The Snellen Eye Chart: A Quick History
What Are Toric Contact Lenses?
Can I Wear Just One Contact Lens?
Are Prescription Sunglasses Worth It? The Pros & Cons
What's an Abbe Number?
What Is the Axis in Your Glasses Prescription?
What Are Adjustable Focus Eyeglasses?
Why Eyeglass Lenses Crack and How to Avoid It
Do I Need Reading Glasses? Here Are the Signs
Concave vs. Convex Lens: What's the Difference?
Exploring the Pros & Cons of Mirrored Sunglasses
10 Tips for Switching from Glasses to Contacts & Vice Versa
What is a Diopter?
Why Are My Glasses Lenses so Thick?
Polarized vs. Non-Polarized Sunglasses: What’s The Difference?
Why Are My Glasses Lenses Turning Yellow?
What Are Trifocal Lenses?
Can Astigmatism Be Fixed with Glasses?
What Are Night Driving Glasses?
How Are Eyeglass Lens' Edges Polished?
How Do Eyeglasses Work?
Spheric vs. Aspheric Lenses: What’s The Difference?
What Are Bifocals & Do You Need Them?