What did you say? I can't hear you without my glasses.

People with myopia often have a feeling

After taking off the glasses

While not being able to see clearly what is in front of you

I can't seem to hear what other people are saying.

Why is this?

Vision does affect our hearing

This effect is called

The McGurk Effect

The McGurk effect is a perceptual cognitive phenomenon that reflects the interaction between hearing and vision in the process of speech perception . Our senses are not isolated. For a thing, the information obtained by different organs will be transmitted to the corresponding centers in the brain. Whether it is the visual center or the auditory center, there is a connection between the cerebral cortex, and finally the information is analyzed and processed as a whole to form a complete understanding of a thing.

When a myopic person takes off his glasses, his vision becomes blurred and the amount of information the brain receives through vision decreases. At this time, more attention must be allocated to analyzing the blurred information, so the attention allocated to hearing is relatively reduced. Even if the attention received through hearing does not decrease, when the brain processes the overall information, insufficient visual information may cause a feeling of unclear hearing.

Then why not have myopia surgery? However, not everyone is suitable for myopia surgery!

The essence of myopia surgery is to change the refractive state of the eyeball through laser or lens implantation, so that the light from external objects can be refocused on the retina, so that you can see the world clearly without wearing glasses.

There is no absolute distinction between good and bad for myopia surgery. Everyone's eye conditions are different, so the surgical methods chosen are also different.

Zhao Bo, director of Tianjin University Aier Eye Hospital, said that myopia surgery has very strict screening requirements and not everyone can undergo it. It is necessary to check whether there are eye diseases, insufficient corneal thickness, unstable degree, etc. Through these detailed data, it can be basically determined whether your eyeball conditions can be operated on and which type of operation is suitable for you. Therefore, preoperative examination is very important, and detailed and professional preoperative examination is the key to surgery.