| Comparison of Ocular Pulse Amplitude Measured Using Dynamic Contour Tonometry and Ocular Blood Flow Analyzer. |
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Yong Hyun Kim, Mar Vin Lee, Jae Hong Ahn |
1Department of Ophthalmology, Ajou University School of Medicine, Suwon, Korea. chrisahn@ajou.ac.kr
2Department of Ophthalmology, Bundang Jesaeng Hospital, Seongnam, Korea. |
| Dynamic Contour Tonometry와 안혈류분석계의 안구 박동 크기 비교 |
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김용현1⋅이마빈2⋅안재홍1 |
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아주대학교 의과대학 안과학교실1, 분당제생병원 안과2 |
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Received: 6 February 2015 • Revised: 24 July 2015 • Accepted: 25 September 2015 |
| Abstract |
PURPOSE
To compare ocular pulse amplitude (OPA) measured using dynamic contour tonometry (DCT) and ocular blood flow analyzer (BFA). METHODS: Thirty-five eyes of 35 patients were enrolled in this cross-sectional and retrospective study. OPA was measured using DCT. Pulse amplitude (PA) and pulsatile ocular blood flow were measured using BFA. RESULTS: OPA measured using DCT (2.79 +/- 0.89 mm Hg) was not significantly different from PA measured with BFA (3.02 +/- 0.90 mm Hg; p = 0.082) and both were significantly correlated (r = 0.663, p < 0.001). Mean difference +/- limit of agreement was -0.22 +/- 1.44 mm Hg between OPA and PA. OPA correlated significantly with intraocular pressure (IOP) measured using Goldmann applanation tonometry (r = 0.330, p = 0.047) but not PA (r = 0.057, p = 0.745). Both PA and OPA did not show significant correlation with the spherical equivalent of refractive error and central corneal thickness. CONCLUSIONS: Although both OPA and PA measure IOP fluctuation and are not significantly different, they showed different relationships with IOP. |
| Key Words:
Intraocular pressure;Ocular blood flow;Ocular pulse amplitude |
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