Understanding PRK Laser Surgery Concepts

The video explains photorefractive keratectomy (PRK) laser surgery, a procedure to correct vision problems such as myopia, hyperopia, and astigmatism. It describes the anatomy of the eye, how these vision issues occur, and how PRK surgery can correct them by reshaping the cornea. The video also highlights the benefits of PRK, including reducing the need for glasses or contact lenses, and notes that the surgery generally does not affect overall health.

What is the primary purpose of PRK laser surgery?

• To improve night vision

• To correct vision problems

• To enhance color perception

• To change eye color

How is the human eye similar to a camera?

• It captures images on film

• It has a zoom function

• It can record videos

• It has a lens and light-sensitive tissue

What is myopia commonly known as?

• Color blindness

• Astigmatism

• Nearsightedness

• Farsightedness

Which condition occurs when the eye is too short?

• Astigmatism

• Presbyopia

• Myopia

• Hyperopia

What causes astigmatism?

• An unevenly curved cornea

• A too long eye shape

• A too short eye shape

• A damaged retina

How does PRK laser surgery correct vision problems?

• By replacing the lens

• By reshaping the cornea

• By adjusting the retina

• By changing the eye's color

What is a key benefit of PRK laser surgery?

• It is a complex procedure

• It is only for cosmetic purposes

• It eliminates the need for glasses

• It requires a long recovery time

Does PRK laser surgery affect overall health?

• Yes, it improves overall health

• No, it does not affect overall health

• Yes, it has significant health risks

• No, but it requires hospitalization

What happens if someone chooses not to have PRK surgery?

• They will experience health issues

• They will need to wear sunglasses

• There are no risks in choosing not to have it

• Their vision will worsen

What is the nature of the PRK procedure?

• It is only for cosmetic purposes

• It requires hospitalization

• It is simple and non-intrusive

• It is invasive and complex