Seasonal changes in visual field sensitivity and intraocular pressure in the ocular hypertension treatment study.

ABSTRACT:

Purpose

Longitudinal testing plays a key role in glaucoma management. Variability between visits hampers the ability to monitor progression. It has previously been shown that average intraocular pressure (IOP) exhibits seasonal fluctuations. This study examines whether visual field sensitivity also exhibits seasonal fluctuations and seeks to determine whether such fluctuations are correlated to seasonal IOP effects.

Design

Comparative case series.

Participants

A total of 33 873 visits by 1636 participants enrolled in the Ocular Hypertension Treatment Study. Participants were split into 6 geographic zones according to the prevailing climate in their location.

Testing

At each visit, standard automated perimetry was conducted on each eye, and IOP was measured.

SUBMITTER: Gardiner SK 

PROVIDER: S-EPMC3618610 | biostudies-literature | 2013 Apr

REPOSITORIES: biostudies-literature