Agreement of rebound and applanation tonometry intraocular pressure measurements during atmospheric pressure change

• DOI: 10.1371/journal.pone.0259143
• Publication Date: 2021-10-28T17:48:13Z
• Authors: Alice Verticchio ...; Alon Harris; Brent Siesky; Ryan Zukerman; Lucia Tanga; Carmela Carnevale; Fabio Scarinci; Francesco Oddone
• Keywords: Applanation tonometry; Bar (unit)

This study investigated the agreement of intraocular pressure measurements using rebound tonometry and applanation in response to atmospheric changes a hyperbaric chamber. Twelve eyes 12 healthy subjects were included this prospective, comparative, single-masked study. Intraocular performed by followed multiplace chamber at 1 Bar, 2, 3 4 Bar during compression again 2 decompression. Mean differences between 1.6, 1.7, 2.1 mmHg 3, respectively 2.6 2.2 Lower limits ranged from -3.7 -5.9 upper -0.3 1.9 mmHg. Multivariate analysis showed that independent (p = 0.79). measured shows systematic difference compared tonometry, but is not influenced up Agreement magnitude change devices suggests viable for assessing changes. Future studies should be designed consideration expected IOP values provided two devices.