Publication: Aplanasyon, dinamik kontür ve havalı tonometrelerle göziçi basıncı ölçülmesi: normal ve primer açık açılı glokomlu olgularda karşılaştırmalı çalışma / Intraocular pressure measurement by applanation, dynamic contour and air puff tonometers, comparative study in with POAG and normal cases
Purpose: by the Goldmann applanation (GAT), Dynamic contour (DCT) and Non-contact (NCT) tonometers, healthy and primary open-angle glaucoma (POAG) in patients with intraocular pressure (IOP) and ocular pulse amplitude (OPA) by making measurements of these three methods and among themselves and between the two groups by comparing credibility among their influences parameters and to investigate the clinical significance. Materials and Methods: A prospective and controlled in this study the 32 men(%50), 32 women, 64 patients received the left eye. 33 POAG patients who are under-diagnosed and treated and 31 control. IOP measurement, respectively, NCT, DCT, and GAT do with whether after (CCT) were measured by ultrasonic pachymeter. OPA and All values were recorded. Results: The mean age was 53.36 ± 10 years (31-80), CCT was 561 ± 45 μ, IOP values average 16.39 ± 3.75 mmHg by GAT, 17.89 ± 3.55 mmHg by DCT, 15.76 ±3.49 mmHg by NCT was found and no differences between two groups. The difference of means between DCT and GAT with NCT, while statistically significant, between GAT and NCT was not significant. With all three methods no correlation between age, gender, and the presence of POAG.Positive correlation all three methods between the CCT. In all three methods with each other very well be correlated, the most powerful one was between DCT and GAT. All three methods revealed a correlation between the CCT, it is determined that affected at least DCT seen. Difference in all three methods of thick cornea was created on. At all corneal thickness DCT measurements tend to produce higher GAT and NCT measurements. when corneal thickness increased, the reduction of this difference was seen. DCT on average, 1.51 ± 1.57 mmHg than GAT and 2.14 ± 2.02 mmHg than NCT, GAT 0.63 ± 1.55 mmHg than NCT higher is measured. This difference did not change in the control and POAG patients have seen.OPA found an average of 2.56 ± 1.04 mmHg, did not detect a difference in two groups. While no correlation between OPA and age, and CCT was correlated with IOP values measured by DCT we saw the strongest correlation. OPA in women (2.81 ± 1.16 mmHg) than men (2.30 ± 0.84 mmHg) is higher and this is found to be statistically significant. Conclusion: The DCT is by minimally affected corneal and other factors (age, gender) in direction of 'diagnosis and treatment of glaucoma' important tonometer. in this regard, we can complete lack of GAT and NCT, Compliant patients are easy to use. Provided such data to OPA and diastolic IOP. In practice the IOP threshold values determined by GAT using, DCT is considered if the new threshold determination regarding whether the necessary with a larger population and prospective studies are required have been concluded.