6 doctors weighed in:

Why is it that when you squint your eyes you can see clearer?

6 doctors weighed in
Dr. Andrew Shatz
Ophthalmology
4 doctors agree

In brief: Pinhole effect

Squinting acts like a pinhole, forcing light through a small region of the eye.
This lets only the straightest rays of light enter the eye; they do not get bent off alignment by irregular curves (astigmatism) or length (nearsighted or farsighted) of the eye. Squinting does not appreciably change the cornea's shape; the force of the eyelids is evenly distributed over the eye, especially the sclera.

In brief: Pinhole effect

Squinting acts like a pinhole, forcing light through a small region of the eye.
This lets only the straightest rays of light enter the eye; they do not get bent off alignment by irregular curves (astigmatism) or length (nearsighted or farsighted) of the eye. Squinting does not appreciably change the cornea's shape; the force of the eyelids is evenly distributed over the eye, especially the sclera.
Dr. Andrew Shatz
Dr. Andrew Shatz
Thank
Dr. Andrew Malinchak
Family Medicine

In brief: Squinting

You can see better when you're squinting because you're slightly changing the shape of your corneas much like eyeglasses refract or bend the light waves to your retina to focus them.

In brief: Squinting

You can see better when you're squinting because you're slightly changing the shape of your corneas much like eyeglasses refract or bend the light waves to your retina to focus them.
Dr. Andrew Malinchak
Dr. Andrew Malinchak
Thank
Get help from a real doctor now
Dr. Andrea Brand
Board Certified,
7M people helped
Continue
108,000 doctors available
Read more answers from doctors