On this page: LASEK vs. LASIK â¢ LASEK vs. PRK â¢ What to expect during and after LASEK surgery â¢ Risks and complications. LASEK eye surgery is a variation of PRK to correct myopia (nearsightedness), hyperopia (farsightedness) and astigmatism. LASEK combines certain methods from both LASIK and PRK. LASIK remains the most popular laser eye surgery, but for people who are not suitable LASIK candidates, PRK or LASEK may be better options and produce comparable outcomes to LASIK.
Sound is actually produced by the pressure changes created when small jets of air pass through moving vocal cords. This is why it can be helpful to think of breath control as the steam engine that makes the machinery of singing function.) A vocal fold. The picture above is a microscopic illustration of the vocal cords.
But just as we walk without thinking about it, we usually speak without thinking how our body makes it happen. However, knowing how we make sound is useful to maintaining the health and effectiveness of our voices. So this year on World Voice Day, April 16, take a minute to learn how your voice works. The following overview describes the body parts that work together to produce the sounds we make when we speak and sing.