About AstigmatismoFit

AstigmatismoFit is a free tool that helps people with astigmatism set up a workspace that actually works for their eyes.

Why this exists

I have astigmatism. I spend most of my day in front of screens — laptop, external monitor, sometimes both. For years I tried to figure out the right setup: where to put the desk, how to position the monitor, what brightness to use, where the window should be relative to the screen, whether dark mode helps or hurts.

The advice I found online was either too general (“take breaks every 20 minutes”) or too clinical (research papers without practical application). Nobody was answering the actual question I had: given that I have astigmatism, what specifically should I change about my workspace?

So I built two things to answer that question for myself.

The simulator came first

I wanted to see, concretely, what astigmatism looks like — not as a metaphor, but as actual rendered pixels. I built the astigmatism simulator using WebGL to apply directional Gaussian blur (the same point spread function used in optical research) over text, images, or live webcam feeds. You can input your own prescription and see the blur your eyes are actually working through every day.

That tool became something I wanted to share with everyone — not just people with astigmatism, but their families, partners, designers, and developers who build the interfaces we read all day. Most people with normal vision have no idea what astigmatic blur actually looks like.

Then the workspace analyzer

The simulator showed the problem. The next question was how to reduce it — not just “wear glasses” (which I do) but specifically how to set up a screen environment that minimizes avoidable strain. The workspace analyzer uses AI vision analysis to evaluate a photo of your actual setup and return scored feedback on monitor positioning, lighting, ergonomics, and viewing distance — with concrete recommendations tailored to astigmatism.

Why it’s free

Astigmatism affects somewhere around 150 million people worldwide. Most of them spend hours a day on screens. The information that helps them — what to change, what works, what the science actually says — shouldn’t be paywalled. So it isn’t.

All features — the simulator, the workspace analyzer, the blog articles — are free, no account required, no signup wall. If you have astigmatism and a screen, the tool is for you.

How it works under the hood

The recommendations are grounded in published research: the American Academy of Ophthalmology, ISO 9241-303, and peer-reviewed work from researchers including Atchison, Sheppard & Wolffsohn, and Rosenfield. Every blog article cites its sources directly.

Privacy is not an afterthought: workspace photos are deleted immediately after analysis, never stored, never used for training. The analyzer runs once on each photo and discards it. The simulator runs entirely in your browser — nothing is uploaded.

What’s next

More research-backed content, more languages, better tooling for the specific quirks of severe astigmatism (compound prescriptions, night vision, halation). If there’s something you wish existed, tell me.

For partnership inquiries from eye care brands, ergonomic equipment manufacturers, or research institutions, see the partners page.