Evaluation of Parameters Affecting Measurement Quality of Dynamic Contour Tonometry
Küçük Resim Yok
Tarih
2011
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Galenos Publ House
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
Objective: To evaluate factors affecting measurement quality of dynamic contour tonometry (DCT). Material and Methods: Three hundred patients took part in this prospective clinical study. For each patient, measurements for one eye were included in the study. Of the participants, 116 had ocular hypertension, 114 had glaucoma, and 70 had normal eyes. We used automatic refractokeratometry, ultrasonic pachimetry, Goldmann applanation tonometry, and DCT measurements to investigate the effects of age, corneal astigmatism, refractive error, central corneal thickness (CCT), intraocular pressures (IOP), and ocular pulse amplitude (OPA) on DCT measurement quality (Q). Logistic regression analysis was used for statistical analysis. Results: For 159 patients, the DCT Q score was 1 (group 1). For the remaining 141 patients, the Q score was 2-3 (group 2). The following values were determined for the two groups, respectively: mean age 58.9 +/- 9.9 and 61.4 +/- 10.6; mean corneal astigmatisms -0.78 +/- 0.67 and -0.92 +/- 0.77 diopter; mean spherical equivalents 0.33 +/- 1.87 and -0.01 +/- 2.02 diopter; mean CCT 547.0 +/- 35.2 and 549 +/- 38.7 mu m. Measurements with DCT provided mean IOPs of 18.5 +/- 3.70 and 21.27 +/- 6.19 mm Hg and mean OPA 3.5 +/- 1.4 and 3.2 +/- 1.2 mm Hg. By logistic regression analysis, we determined that the parameters affecting measurement quality were age, DCT measurement level, and OPA (p=0.015, p=0.000, and p=0.000, respectively). Conclusion: High IOP values, advanced age, and low OPA values can lead to decreased DCT measurement quality.
Açıklama
40th National Congress of Ophthalmology -- 2007 -- Antalya, TURKEY
Anahtar Kelimeler
Dynamic Contour Tonometry, Ocular Rigidity, Q Score, Goldmann Applanation Tonometry, Elevated Intraocular-Pressure, Central Corneal Thickness, Eyes
Kaynak
Balkan Medical Journal
WoS Q Değeri
N/A
Scopus Q Değeri
Q3
Cilt
28
Sayı
3
