Department of Ophthalmology, Southern General Hospital, Glasgow, Scotland.
Ophthalmic Physiol Opt. 2009 Nov;29(6):648-51. doi: 10.1111/j.1475-1313.2009.00680.x.
To assess the validity of the Tono-Pen XL as an alternative to the Goldmann applanation tonometer (GAT) for the measurement of intraocular pressure (IOP) in patients with ocular hypertension (OHT) and glaucoma.
Over a 3 month period, patients with OHT or glaucoma attending a general clinic had IOP measurements taken using the Tono-Pen XL and the GAT. Tono-Pen measurements were taken by suitably trained nursing staff, while Goldmann tonometry was performed by the examining ophthalmologist.
There were 124 eyes of 62 patients in this study. Overall, mean IOP was 18.3 +/- 4.8 mmHg using GAT and 18.8 +/- 5.5 mmHg using the Tono-Pen. Using the Bland-Altman method, the upper and lower limits of agreement between the two devices were +10.6 mmHg and -9.6 mmHg, respectively. Significant over- and under-estimates of IOP were noted in 10 (16%) patients.
Our findings suggest that the Tono-Pen XL cannot be used as a substitute for GAT in the management of patients with glaucoma or OHT.
评估 Tono-Pen XL 在测量高眼压症（OHT）和青光眼患者眼内压（IOP）方面作为 Goldmann 压平眼压计（GAT）的替代方法的有效性。
在 3 个月的时间里，在普通诊所就诊的 OHT 或青光眼患者使用 Tono-Pen XL 和 GAT 进行 IOP 测量。Tono-Pen 测量由经过适当培训的护理人员进行，而 Goldmann 眼压计则由检查眼科医生进行。
本研究共纳入 62 例患者的 124 只眼。总体而言，GAT 测量的平均 IOP 为 18.3 +/- 4.8 mmHg，Tono-Pen 测量的平均 IOP 为 18.8 +/- 5.5 mmHg。使用 Bland-Altman 方法，两种设备之间的上、下一致性界限分别为+10.6 mmHg 和-9.6 mmHg。在 10 名（16%）患者中观察到 IOP 的显著高估和低估。
我们的研究结果表明，Tono-Pen XL 不能替代 GAT 用于青光眼或 OHT 患者的管理。
