Comparison of Intraocular Pressure and Pachymeter Measurements Obtained by Non Contact Tonometer-pachymeter with Goldmann Applanation Tonometer and Corneal Topography

Yeter D. Y., KÖYLÜ M. T., Oguz Y. G., YEŞİLTAŞ Y. S., Akincioglu D., Gurdal F., ...Daha Fazla

Turkish Journal of Clinical and Experimental Ophthalmology, cilt.16, sa.1, ss.12-17, 2021 (Scopus, TRDizin)

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 16 Sayı: 1
  • Basım Tarihi: 2021
  • Doi Numarası: 10.37844/glauc.cat.2021.16.3
  • Dergi Adı: Turkish Journal of Clinical and Experimental Ophthalmology
  • Derginin Tarandığı İndeksler: Scopus, TR DİZİN (ULAKBİM)
  • Sayfa Sayıları: ss.12-17
  • Anahtar Kelimeler: Central corneal thickness, Intraocular pressure, Non-contact tono-pachymeter
  • Sağlık Bilimleri Üniversitesi Adresli: Evet

Özet

Purpose: To compare the measurements of intraocular pressure (IOP) and central corneal thickness (CCT) by tono-pachymeter (CT-1P) with IOP measurements by Goldmann applanation tonometer (GAT), and CCT measurements by Pentacam. Materials and Methods: Two hundred eighteen eyes of 109 patients were included in the study. Intraocular pressure measurements were obtained by the CT-1P and GAT, whereas CCT measurements were obtained by CT-1P and Pentacam. Blant-Altman plots for agreement, and Pearson correlation and interclass correlation (ICC) for reliability between the measurements were analyzed. Results: The mean IOPCT-1P, IOPCT-1P adj., IOPGAT were measured as 18.2±4.32 mmHg, 17.75±4.05 mmHg and 16.9±4.16 mmHg, respectively. The mean CCT was measured as 554.8±37.3 μm and 543.6±35.9 μm with CT-1P and Pentacam, respectively. Mean differences between devices were significantly different in terms of IOP and CCT measurement (p<0.001, for all). Interclass correlation coefficient confirmed the excellent reliability between devices in terms of measurement of IOP and CCT (p<0.001, for all). The 95% limits of agreement (LoA) for IOP were-4.24 to 3.28 mmHg between IOPCT-1P adj. and IOPCT-1P,-3.49 to 5.14 mmHg between IOPCT-1P adj. and IOPGAT and-2.7 to 5.3 mmHg between IOPCT-1P and IOPGAT. Also 95% LoA for CCT were-12.33 to 32.16 μm between CCTCT-1P and CCTPentacam. Conclusion: Although CT-1P overestimated both IOP and CCT measurements, the device had an excellent ICC with Pentacam and GAT in terms of CCT and IOP measurements. The ability of tono-pachymeters measuring both CCT and IOP with a single device provide an important convenience in busy clinics.