In this before-after interventional study on patients with presbyopia after cataract surgery,
uncorrected distance vision and corrected distance visual acuity are measured and recorded by
Snellen chart. Corrected near visual acuity from a distance of 40 cm is measured by the
standard near vision chart (Rosenbaum near vision card). Twenty minutes after the
administration of pilocarpine 1%, the corrected near and far visual acuity is measured again.
Also, the relationship between the difference in average near visual acuity after the
administration of 1% pilocarpine in pseudophakic people is measured with iris color and pupil
size.