In my last post, I wrote about artists whose eyesight shaped their work—Monet, Degas, O’Keeffe, Chuck Close, and others. Their paintings bear the trace of cataracts, macular degeneration, blindness, or simply a different way of seeing. But sometimes words and canvases aren’t enough—we want to see these struggles brought to life. Luckily, filmmakers have been fascinated with the same question: what happens when an artist’s vision changes?

Most people think that seeing happens in the eyes. Light enters, the eye focuses, and the image appears. Simple. But the real story of vision is stranger than that. Our eyes collect information, yes—but the brain does the heavy lifting. It edits, organizes, fills in gaps, and sometimes invents. And every so often, the system glitches in ways that can be terrifying, beautiful, or both.