Jorge J, González-Méijome J M, Díaz-Rey J A, Almeida J B, Ribeiro P, Parafita M A
Department of Physics (Optometry), School of Sciences, University of Minho, Braga, Portugal.
Ophthalmic Physiol Opt. 2003 Nov;23(6):503-6. doi: 10.1046/j.1475-1313.2003.00139.x.
Measuring intraocular pressure (IOP) by non-contact tonometry (NCT) has been demonstrated to be a valid and reliable technique to be used in primary eye care; it is easier to use, it does not transmit infectious diseases, and it is not necessary to use anaesthetic or staining eye drops. Recently, a new NCT device has showed an excellent level of agreement with Goldmann tonometry, but there are no records of its performance in glaucomatous eyes. To rectify this, IOP was measured in twenty-two patients (44 eyes) receiving medical treatment to control elevated IOP, with AT550 and Goldmann tonometry. Mean values of IOP were 18.98 +/- 2.77 and 19.08 +/- 3.02 mmHg using Goldmann and AT550, respectively. Plots of differences against means displayed good agreement (mean difference +/- limits of agreement, -0.09 +/- 3.30); this value was not significantly different from zero (t-test for dependent samples, p = 0.709). In conclusion, IOP values as measured with the AT550 NCT are clinically comparable with those obtained with Goldmann tonometry in glaucomatous patients. This validates this NCT not only for screening of IOP but to follow-up glaucomatous patients with a rapid, non-invasive method.
通过非接触眼压计（NCT）测量眼压（IOP）已被证明是一种用于初级眼保健的有效且可靠的技术；它使用更简便，不会传播传染病，并且无需使用麻醉剂或染色眼药水。最近，一种新型NCT设备与Goldmann眼压计显示出极佳的一致性，但尚无其在青光眼患者中性能的记录。为纠正这一点，使用AT550和Goldmann眼压计对22例接受药物治疗以控制眼压升高的患者（44只眼）进行了眼压测量。使用Goldmann和AT550测量的眼压平均值分别为18.98±2.77和19.08±3.02 mmHg。差值与均值的图显示出良好的一致性（平均差值±一致性界限，-0.09±3.30）；该值与零无显著差异（配对样本t检验，p = 0.709）。总之，在青光眼患者中，用AT550 NCT测量的眼压值在临床上与用Goldmann眼压计获得的值相当。这不仅验证了这种NCT可用于眼压筛查，还可用于通过快速、非侵入性方法对青光眼患者进行随访。
