TED-Ed: How does laser eye surgery work? | Dan Reinstein

The video explores the evolution of vision correction from Barraquer's keratomileusis to modern laser surgeries like LASIK and SMILE. It explains refractive errors such as myopia, hyperopia, and astigmatism, and how these can be corrected by reshaping the cornea. Modern techniques use lasers for precise corneal sculpting, offering less invasive options with quicker recovery times. The video also discusses advancements like laser blended vision, which can address aging eyes, and highlights the potential for a future without glasses.

What was the main goal of Jose Ignacio Barraquer Moner's surgical procedure?

• To enhance the color perception of the eye

• To eliminate the need for glasses by reshaping the cornea

• To improve night vision

• To increase the size of the cornea

Which refractive error is characterized by a steep cornea focusing light short of the retina?

• Presbyopia

• Myopia

• Astigmatism

• Hyperopia

How do glasses and contact lenses help correct refractive errors?

• By altering the shape of the lens

• By increasing the size of the retina

• By bending light to compensate for the errors

• By changing the color of the eye

What is the primary tool used in LASIK surgery to reshape the cornea?

• Scalpel

• Excimer laser

• Ultrasound

• Microscope

What is the full name of the LASIK procedure?

• Laser-induced vision correction

• Laser-assisted corneal reshaping

• Laser-enhanced eye surgery

• Laser in-situ keratomileusis

What is the advantage of the SMILE technique over traditional LASIK?

• It uses no lasers

• It requires no incisions

• It involves smaller incisions, reducing recovery time

• It is suitable for all types of refractive errors

How does laser blended vision help restore aging eyes?

• By adjusting both eyes for better distance vision

• By changing the color of the iris

• By adjusting one eye for distance and the other for close range

• By increasing the size of the cornea