About Focus Clinic
Focus Clinic turns you into an eye doctor. Each patient tells you their problem, and you see the world the way they do: a blurry letter chart far away, or a blurry book page up close. A side view of their eye shows the light rays bending through the cornea and lens, and where they meet: right on the retina, in front of it, or behind it.
Nearsighted eyes are a little too long, so light meets in front of the retina and needs a minus lens. Farsighted eyes are too short, and young eyes strain to focus. After about 40, the lens inside the eye stiffens and reading needs extra plus. With astigmatism, up-down and side-to-side light meet in two different places. You turn the lens power up or down until the rays meet on the retina and the picture is sharp, and learn why eye doctors choose the weakest minus or the strongest plus that works.
The Eye Lab lets you stretch an eye, change its age and add astigmatism to see what happens. In Growing Eyes you plan a child's after-school hours from age 6 to 16: lots of close-up screen time makes a growing eye stretch longer and more nearsighted, while time outside slows that growth down. Made by an eye doctor.
Best for ages 9+
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