Comparison of the Diaton Transpalpebral
Tonometer Versus Goldmann Applanation
R. S. Davidson1; N. Faberowski2; R. J. Noecker3; M. Y. Kahook1
1. Ophthalmology, Rocky Mountain Lions Eye Institute, Aurora,
2. Ophthalmology, Denver Health Medical Center, Denver, CO,
3. Ophthalmology, UPMC, Pittsburgh, PA, USA.
The authors have no financial interest in the subject
matter being presented
Diaton tonometry is a
unique approach to
pressure (IOP) through
the Eyelid. It is a non-
contact (no contact
with cornea), pen like,
tonometer. It requires
no anesthesia or
To investigate the
agreement in the
intraocular pressure (IOP)
using the Diaton
Goldmann applanation in
adult patients presenting
for routine eye exams.
review of consecutive
performed on 64 eyes of
32 patients age 34-91
years with both the
Diaton tonometer and
Results between groups
were examined using
analysis of variance
Mean IOP was 15.09 +/-4.31 mm Hg in the
Goldmann group and 15.70 +/-4.33 mm Hg in the
Diaton group (p=0.43).
Mean IOP variation between groups was 1.74 +/-
1.42 mm Hg (range 0-8). 83% of all measurements
were within 2 mm Hg of each other.
The transpalpebral method of measuring IOP with the
Diaton tonometer correlates well with Goldmann
applanation. Diaton applanation may be a clinically
useful device for measuring IOP in routine eye exams.