A pinhole effect, achieved through surgery, pharmacologic agents, IOLs or inlays, can treat significant irregular corneal astigmatism and higher-order aberrations, whose effects are minimized by reducing pupillary aperture.
A smaller pupil can reduce incident straylight, help improve visual acuity, and reduce glare and halos.
The pinhole effect/small-aperture optics is an effective therapy to increase depth of focus, OSN Technology Board Member Karolinne M. Rocha, MD, PhD, said.
“You really want to achieve that ideal pupil size that enhances depth of focus without compromising distance
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