[Self-measurement of intraocular pressure].
OBJECTIVE
To study Draeger's self-tonometer handling and accuracy.


METHODS
This microprocessor-controled applanation tonometer enables the patient to perform frequent measurements himself. Two studies were carried out. In a first patient series of 22 participants we analyzed patient-acceptance with regard to tonometer handling, in a second group of 10 normal eyes, 30 average readings obtained using the Draeger tonometer were compared to the results from Goldmann applanation tonometry.


RESULTS
In the first group of 22 patients, 8 participants considered that the new tonometer was easy to handle, 7 reported moderately difficult and 6 difficult handling. One patient did not succeed in measuring at all. The results of the second group showed a statistically non significant mean difference of 0.3mmHg with a standard deviation of nearly 2 mmHg. 80.1% of measurements were within +/-2mmHg. The correlation coefficent was 0.73.


CONCLUSIONS
Handling the self-tonometer is quite simple and provides close and reliable readings. Thus, in addition to early detection, self-tonometry offers the possibility of improved management and follow-up of glaucoma.
Theisen
R
R
Augenklinik und Poliklinik, Universität des Saarlandes, Kirrberger Str. 1, D-66421 Homburg.
Scherer
V
V
Ruprecht
K W
KW
D004867:Equipment Design; D006801:Humans; D007429:Intraocular Pressure; D016353:Self-Examination; D014065:Tonometry, Ocular / Q000295:instrumentation / Q000379:methods*