Rather than fear something really bad causing your eyes to make a cracking sound with nearly every blink, there are a few facts that are important to know first.

It’s not uncommon for someone to occasionally hear a cracking type of sound when they blink.

“The average person blinks about 1,200 times an hour,” says Dr. Brian Boxer Wachler, MD, eye surgeon and founder of The Boxer Wachler Vision Institute, and developer of the Holcomb C3-R® procedure which treats a degenerative eye disease.

Dr. Boxer Wachler explains, “Your eyelids are like windshield wipers and coat the surface of your eyes with your tear film.

“There is also air right outside your tear film. Tiny amounts of air can get behind your eyelids, and when you blink it can make some pretty interesting sounds like cracking or popping, especially if you squeeze your eyelids tightly.

“So if you hear that cracking sound, then just blink normally.”

When someone hears a cracking, crackling or popping sound when they blink, the first impulse is to blink harder and/or more frequently to figure out what’s going on or if the sound is just in one’s imagination.

However, more aggressive blinking could make the cracking more likely.

It’s advisable to try daily eye drops to make sure that the surface of your eyes is adequately lubricated.


Just relax and know that this situation is benign and not a sign of a serious eye or nerve disease.

Before you know it, the cracking or popping with each blink will be gone or hardly noticeable.

dr. boxer wachler
Dr. Boxer Wachler has delivered hundreds of lectures on eye surgery to thousands of eye surgeons from around the world, and is a pioneer in keratoconus treatment.
Lorra Garrick has been covering medical, fitness and cybersecurity topics for many years, having written thousands of articles for print magazines and websites, including as a ghostwriter. She’s also a former ACE-certified personal trainer.  

Cause of Seeing Blue Spots in One’s Vision

What You Should Do if Urine Is Splashed in Your Eye

Why Your Eyes Feel Like Gnats or Bugs Are Crawling on Them

3 Benign Causes of Temporary Blurry Vision

Cause of One Pupil Temporarily Dilated, No Response to Light

Constant Feeling that Something’s in Your Eye: Causes