TY - JOUR
T1 - Reliability of intraocular pressure measurements after myopic excimer photorefractive keratectomy
AU - Abbasoglu, Özlem Evren
AU - Bowman, Robert W
AU - Cavanagh, Harrison D
AU - McCulley, James P
N1 - Funding Information:
Supported by a senior scientist (HDC) and an unrestricted grant award from Research to Prevent Blindness Inc., New York, and by a grant from TUBITAK (Turkish Scientific and Technological Research Council).
Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 1998/12/1
Y1 - 1998/12/1
N2 - Objective: To determine the reliability of intraocular pressure (IOP) measurements by Goldmann applanation tonometry and pneumotonometry in eyes treated with excimer myopic photorefractive keratectomy (PRK). Design: A prospective case series. Participants: Forty consecutive eyes treated with PRK were evaluated. Intervention and Main Outcome Measures: Central and peripheral corneal Goldmann tonometry and pneumotonometry measurements were done before surgery, at 1 week, and at 1 and 3 months after surgery. Results: The IOP by Goldmann tonometry from the central cornea was significantly lower than the peripheral IOP; however, there was no difference between IOP measured from central and peripheral corneas by pneumotonometry, which, in turn, correlated with peripheral Goldmann measurements. There was a trend, but not a statistically significant correlation, between the spherical equivalent of the treatment and the amount of decrease in central Goldmann IOP. Conclusions: Pneumotonometry measures the IOP reliably after PRK from all parts of the cornea, whereas central Goldmann tonometry underestimates the IOP by 2.40 ± 1.23 mmHg.
AB - Objective: To determine the reliability of intraocular pressure (IOP) measurements by Goldmann applanation tonometry and pneumotonometry in eyes treated with excimer myopic photorefractive keratectomy (PRK). Design: A prospective case series. Participants: Forty consecutive eyes treated with PRK were evaluated. Intervention and Main Outcome Measures: Central and peripheral corneal Goldmann tonometry and pneumotonometry measurements were done before surgery, at 1 week, and at 1 and 3 months after surgery. Results: The IOP by Goldmann tonometry from the central cornea was significantly lower than the peripheral IOP; however, there was no difference between IOP measured from central and peripheral corneas by pneumotonometry, which, in turn, correlated with peripheral Goldmann measurements. There was a trend, but not a statistically significant correlation, between the spherical equivalent of the treatment and the amount of decrease in central Goldmann IOP. Conclusions: Pneumotonometry measures the IOP reliably after PRK from all parts of the cornea, whereas central Goldmann tonometry underestimates the IOP by 2.40 ± 1.23 mmHg.
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U2 - 10.1016/s0161-6420(98)91215-5
DO - 10.1016/s0161-6420(98)91215-5
M3 - Article
C2 - 9855146
AN - SCOPUS:0032470563
SN - 0161-6420
VL - 105
SP - 2193
EP - 2196
JO - Ophthalmology
JF - Ophthalmology
IS - 12
ER -