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Abstract
Abstract
Prospective Comparison of the Tonometer TGDc-01 with the Goldmann-applanation Tonometry and the Non-contact Tonometry PT 100
Müller A., Lang G. E., Lang G. K., Kampmeier J.
Augenklinik, Universitätsklinikum Ulm
Purpose: To compare a new portable measuring instrument (TGDc-01) to determine the intraocular pressure (IOP) with two established devices, Goldmann-applanation tonometry and non-contact-tonometry PT100.
Method: In 50 healthy volunteers the iop was measured with three different procedures within 15 minutes. These examinations were performed under standarized and reproducible conditions.
Results: The measurments showed a mean IOP of 11.2 mmHg (range 7,5-19,5 mmHg) using the TGDc-01, 12 mmHg (range 9 - 20 mmHg) using the Goldmann-tonometry and 11.8 mmHg (range 9-19,8 mmHg) using the PT 100. No significant deviation to Goldmann-applanation tonometry was shown using the paired-t-test.
Conclusions: The results were reproducible and reliable for all three devices. In general, the IOP was lower in the case of TGDc-01. Additionally, the correct handling was very important for reproducible results. Especially in developing countries the use of the TGDc-01 could be very helpful.