Effects of mydriasis and miosis on kinetic perimetry findings in normal participants

Abstract

For both pupil conditions, kinetic sensitivity at each meridian showed a similar trend to the isopter area under each stimulus. The isopter area of the dilated pupil generally decreased, whereas the isopter area of the constricted pupil showed various findings. Therefore, careful attention should be paid to changes in the isopter area associated with changes in the pupil size.

Reduced vision in highly myopic eyes without ocular pathology: the ZOC‐BHVI high myopia study

“…Current population‐based studies, for example, the Refractive Error in School‐aged Children (RESC) measure VA post‐cycloplegia because accommodation can lead to under‐measurement of refractive error . Given that several studies have reported that cycloplegia can reduce vision, this combined with our lower threshold of 6/9 for mildly‐reduced vision, there is a possibility that this could lead to more high myopes classified as having reduced vision.…”

“…One of the limitations of the current study is that subjective VA was assessed only once, under cycloplegia and under high contrast conditions. Many studies have reported that vision can be reduced following cycloplegia and the reason for this is unclear, although this has not been reported specifically for high myopes. Current population‐based studies, for example, the Refractive Error in School‐aged Children (RESC) measure VA post‐cycloplegia because accommodation can lead to under‐measurement of refractive error .…”