Turkish Abstract Abstract PDF Similar Articles Mail to Author

¹Uludağ Üni.Tıp Fak. Göz Hastalıkları A.D., Bursa, Prof. Dr.
²Uludağ Üni.Tıp Fak. Göz Hastalıkları A.D., Bursa, Doç. Dr.
³Uludağ Üni.Tıp Fak. Göz Hastalıkları A.D., Bursa, Uzm. Dr. Purpose: The purpose of this investigation is to evaluate intraocular pressure (IOP) and ocular pulse amplitude (OPA) as parameters of ocular circulation balance,which were measured by dynamic contour tonometry (DCT) (Pascal;Swiss Microtechnology AG, Zurich,Switzerland) and pulsatil ocular blood flow analyser of Paradigm (Dicon Ocular Bşlood Flow Analyser) .
Materials and Methods: Thirty four eyes of 17 healhty subjects were included the study. Nine of the patients were women and 8 of them were with age range of 50 to 75 years. IOP and OPA were measured under topical anesthesia and in sitting posture by DCT with Q= 1-3 taken in to account. After ten minutes, the same values were measured by POBF analyser. The results were evaluated.
Results: On 34 healthy eyes; 1. Intraocular pressure values were 16.0±2.4 mmHg by DCT and 15.9±3.3 mmHg by POBF. There was a strong correlation between DCT and POBF (r=0.504, p<0.002). The difference between the mean IOP was not statistically important (t test; t0. 15, p>0.05).There was relation with age. 2. Ocular pulse amplitude values were 2.8±0.8 mmHg by DCT and 4.0±1.3 mmHg by POBF. There was a correlelation between the results of OPA values from DCT and POBF (r=0.643, p<0.001, but the values from POBF were significantly higher than those of DCT. There was no relation with age.
Conclusion: POBF analyser’s IOP values was the same as DCT’s IOP values; but POBF-OPA was higher than DCTOPA and could be correlated with each other. Since corneal parameters do not effect to DCT measurements, simultaneous IOP and OPA measurements with this tonometer (DCT) is needed for measurement of the parameters of ocular circulation balance in glaucoma clinics and target OPA may be a good criteria for treatment choice. Keywords : Intraocular pressure, ocular pulse amplitude , dynamic contour tonometry, pulsatile ocular blood flow analyser