The cornea's pupillary opening (or lens) plays a critical role in clarity of vision when we focus on our front eye. Technology has made it easier to treat issues like cataracts in an ideal and effective way.
However, if we take a closer look at the cornea, especially if it is irregular, this can pose a problem for highly skilled surgeons who operate in the anterior and corneal segments. A doctor might suggest shifting the focus away from the cornea in patients with corneal astigmatisms.
If the size of pinhole pupil increases,then the quality of images is better. Aberrations also decrease. It is crucial to remember that smaller pupillary sizes mean that the exact location of the pinhole opening is more important. In this situation, you can use eye drops. The Pinhole pupil plays a vital role for the quality of vision.
You may also notice an increase in brightness when the pupil is open. This is possible when the lighting conditions are dim. This can be overcome if you have the ability to adjust.
It is possible for pupils to shrink in size. However, there is no noticeable decrease in stereo acuity. There is also an increase in the diffuse light circle, which improves the quality and vision.