How the human eye sees

BETA

artiteacher Drag light rays through the lens to figure out how your eyes focus the world.

artiteacher Vision variations and future tech

Beam the light inside (oh yeah!) / Digital sight comes alive (that's right!)

artiteacher The imperfect curve of an astigmatism

artiteacher Around age 40, the eye's lens begins to lose its flexibility, making close-up reading difficult—a condition called presbyopia.

artiteacher An irregularly shaped cornea or lens causes light to scatter, making images look blurry or stretched at all distances.

Fun Fact

Laser surgery: LASIK eye surgery reshapes the cornea using a cool ultraviolet laser beam, taking less than ten minutes per eye.

Glossary

bionic eye (noun)
An electronic device implanted in the eye to restore some degree of vision to those with severe sight loss. In 2013, the FDA approved the Argus II, a pioneering device restoring sight to blind patients.

Gossip

Would you wear smart contact lenses with built-in internet?

Quiz

What type of laser is used in LASIK surgery to reshape the human cornea?

artiteacher The physical shape of blurry vision

Quiz

How does a concave lens correct nearsightedness in the human eye?

artiteacher The futuristic rise of bionic vision

Quiz

What physical shape anomaly of the eyeball causes human nearsightedness (myopia)?

artiteacher The age of stiffening eye lenses

Quiz

Which eye condition involves the gradual clouding of the natural lens?

Quiz

What do modern bionic eye implants typically use to capture visual data?

Quiz

What eye condition occurs when the lens becomes stiff and less flexible with age?

Quiz

How does glaucoma damage the human optic nerve?

Quiz

What is the medical term for an irregular curvature of the human cornea?