Schipper I, Senn P, Oyo-Szerenyi K, Peter R
Eye Clinic, Cantonal Hospital, Lucerne, Switzerland.
J Cataract Refract Surg. 2000 Jun;26(6):929-33. doi: 10.1016/s0886-3350(99)00461-7.
To compare the accuracy of Goldmann tonometry with that of the Tono-Pen(R) in measuring intraocular pressure (IOP) after photorefractive keratectomy (PRK). Eye Clinic, Cantonal Hospital, Lucerne, Switzerland.Thirty-five eyes (25 patients) had PRK for a mean myopia of -6.2 diopters +/- 2.6 (SD). Intraocular pressure (IOP) measurements were performed first with the Goldmann tonometer and then with the Tono-Pen in 2 corneal locations: centrally in the usual manner and temporally. For the temporal measurements, the patient was directed to gaze nasally as the tonometer was placed perpendicular to the temporal portion of the cornea and with the rim of the tonometer positioned just inside the limbus of the cornea. Subsequently, similar measurements were made with the Tono-Pen. Measurements were performed before and 1 and 3 months after PRK. Preoperative IOPs measured centrally and temporally were similar. After PRK, the central pressure readings with the Goldmann tonometer and the Tono-Pen were between 1.8 and 2.3 mm Hg lower than those measured temporally. The differences were statistically significant (P <.0001). Central corneal pressure readings obtained with either the Goldmann tonometer or the Tono-Pen after myopic PRK are inaccurate. Measurements over the temporal part of the cornea are likely more reliable.
比较Goldmann眼压计与Tono - Pen眼压计在测量准分子激光原位角膜磨镶术（PRK）后眼压（IOP）时的准确性。瑞士卢塞恩州立医院眼科诊所。35只眼（25例患者）接受PRK治疗，平均近视度数为-6.2屈光度±2.6（标准差）。眼压（IOP）测量首先使用Goldmann眼压计，然后在两个角膜位置使用Tono - Pen眼压计：以常规方式在中央测量，以及在颞侧测量。对于颞侧测量，当眼压计垂直于角膜颞侧部分放置且眼压计边缘刚好位于角膜缘内侧时，让患者向鼻侧注视。随后，用Tono - Pen进行类似测量。在PRK术前、术后1个月和3个月进行测量。术前在中央和颞侧测量的眼压相似。PRK术后，Goldmann眼压计和Tono - Pen眼压计在中央的压力读数比在颞侧测量的读数低1.8至2.3 mmHg。差异具有统计学意义（P <.0001）。近视PRK术后使用Goldmann眼压计或Tono - Pen眼压计获得的中央角膜压力读数不准确。在角膜颞侧部分进行测量可能更可靠。
