J Korean Ophthalmol Soc.  2012 May;53(5):662-667.

Intraocular Pressure Measurement with the Noncontact Tonometer and Rebound Tonometer through Plano Soft Contact Lenses

• Lee CM
• Yu YC

Abstract

PURPOSE
To investigate the accuracy of intraocular pressure (IOP) measurement through a plano soft contact lens (SCL) in situ by a noncontact tonometer (NCT) and a rebound tonometer (RBT).
METHODS
The IOP of 66 eyes of 33 subjects with no ocular pathology was measured by NCT (tonometer CT-80, TOPCON, Japan) and RBT (iCare rebound tonometry(TM), Tiolat Oy, Finland). IOP measurement was repeated through plano SCL (ACUVUE OASYS(R), Johnson & Johnson Vision Care Inc., USA) in situ. Statistical analysis was performed using the paired t-test.
RESULTS
Mean IOP measured by NCT was 13.10 +/- 2.52 mmHg without SCL and 12.95 +/- 2.56 mmHg with SCL. Mean IOP measured by RBT was 14.13 +/- 2.94 mmHg without SCL and 13.84 +/- 2.75 mmHg with SCL. No significant statistical differences were found between IOP measured with and without SCL (p=0.47, p=0.11 respectively).
CONCLUSIONS
Reliable measurement of IOP by NCT and RBT can be achieved through plano SCL.

Keyword

Intraocular pressure; Noncontact tonometer; Rebound tonometer; Soft contact lens

MeSH Terms

Contact Lenses, Hydrophilic
Eye
Intraocular Pressure
Vision, Ocular