Anti-Glare Night Driving Glasses: What Reduces Glare and What Doesn’t
Yellow tinted lenses don’t improve night driving safety, per clinical research. Learn what actually reduces glare: clear lenses, AR coatings, and an accurate prescription.
Saulo Garcia
I grew up inside an optical shop. My mother likes to tell how, as a kid, I would watch eyeglasses being assembled, play with the tools, and draw on the back of service order slips. The family business taught me early what a precise measurement and work done right are worth.
I went on to spend more than twenty years as a software engineer, always keeping an eye on the optical world. Optogrid was born where the two meet: digital measurement technology (pupillary distance and fitting heights) built by someone who knows the dispensing counter from the inside.
How to Stop Glasses From Fogging: Anti-Fog Coatings, Sprays, and What Actually Works
Glasses fog when warm, humid air meets lenses cooled below the dew point. This guide compares permanent anti-fog coatings, surfactant-based sprays, and DIY fixes so you can choose the right solution for your lenses.
How Should Glasses Fit? Signs of a Good Fit and How to Fix Common Problems
Learn the four signs that your glasses fit correctly, how to diagnose sliding and pinching, and when a low bridge fit design might be right for you.
Keratoconus: Detection, Staging, and Fitting Strategies for Optical Professionals
Keratoconus is progressive corneal ectasia that produces irregular astigmatism no spectacle lens can fully correct. This guide covers early detection signs, Amsler-Krumeich staging, and correction selection from early-stage spectacles through advanced scleral lenses.
Dry Eye Syndrome: What Opticians Need to Know About Causes, Symptoms, and Lens Choices
Dry eye syndrome is the leading reason contact lens wearers drop out of wear. This guide explains the tear film, the two main subtypes, and what opticians can actually do about it at the fitting desk.
Presbyopia: What It Is, When It Starts, and How Opticians Correct It
Presbyopia is the inevitable, age-related loss of near-focusing ability that affects virtually everyone past age 50. This guide covers onset, add power progression, correction options, and why accurate fitting measurements are critical for progressive lens wearers.
Can You Measure Fitting Height When the Customer Isn’t Wearing the Frame?
Selling lenses online, you can already get pupillary distance from a photo, but segment height has needed the customer to be wearing the frame. We are building a way to measure fitting height, and the full dispensing set, from a single remote photo, no try-on required. Here is a first look.
Prentice’s Rule Calculator: Induced Prism from Decentration
Calculate induced prism from decentration with Prentice’s rule. Enter lens power and decentration for the prism, or any two of prism, power and decentration to solve for the third.
ANSI Z80.1 Lens Tolerance Checker: Does the Job Pass?
Check a finished pair of glasses against ANSI Z80.1 in seconds. Enter the ordered prescription and the lensmeter reading, and the tool flags sphere, cylinder, axis and add as pass or fail against the standard.
Minimum Blank Size (MBS) Calculator: A Quick Formula & Explanation
This post presents the common method for estimating the minimum lens block diameter, also known as Minimum Blank Size (MBS), using the formula “Frame Bridge + Frame Width – PD + Longest Diagonal + 2 mm” widely adopted in labs and optical shops. Despite its simplicity, this method offers bench‑speed calculation and a safety margin for block cutting, though it can be imprecise for complex frame geometries.