4Eyes

4Eyes adjusts every website to your eye prescription in real time. Less strain, clearer text, everywhere you browse.

4Eyes — Vision Adaptive Display Pro See the web the way your eyes were meant to. 4Eyes is the first Chrome extension that adapts every website to your personal eye prescription in real time. Simply enter your prescription values (SPH, CYL, Axis, ADD) and 4Eyes automatically optimizes your entire browsing experience for your specific vision needs. How it works Most people with prescriptions wear glasses or contacts to correct their vision — but even with correction, screen reading can cause eye strain, headaches, and fatigue. 4Eyes goes further by adapting the display itself to reduce strain at the source. What 4Eyes adjusts Brightness — reduced for myopia to minimize glare, optimized for hyperopia Contrast — scaled with astigmatism severity for sharper, clearer text edges Letter spacing — adjusted based on your axis direction for easier character recognition Line height — increased for horizontal astigmatism to improve line tracking Font recommendations — 3 fonts ranked and recommended based on your prescription type Recommended fonts for your eyes 4Eyes analyzes your prescription and recommends the best fonts for your vision condition — from Atkinson Hyperlegible for low vision to Lexend for astigmatism, Nunito for hyperopia, and Source Serif 4 for presbyopia. Your data, your privacy Your prescription is stored securely in your personal account and never shared. All display adjustments happen locally in your browser. Who is 4Eyes for? People with myopia (nearsightedness) People with hyperopia (farsightedness) People with astigmatism People with presbyopia (reading glasses) Anyone who experiences eye strain from screen use Getting started Install 4Eyes Click the extension icon and open the dashboard Create your free account Enter your eye prescription Browse comfortably — 4Eyes handles the rest Your eyes work hard every day. 4Eyes works with them.