Gräf M
Univ.-Augenklinik Giessen.
Klin Monbl Augenheilkd. 1991 Sep;199(3):183-6. doi: 10.1055/s-2008-1046068.
In this study the Reichert non-contact tonometer (NCT II) was compared with the Goldmann applanation tonometer (GAT) in 25 subjects (50 eyes; pressure range 9-17 mmHg). The relationship NCT/GAT fulfilled the conditions required for legal verification. Marked differences between the readings of both instruments can be caused by anomalous central corneal thickness, because non-contact tonometry is influenced more than conventional applanation tonometry by the corneal thickness. Starting from a central thickness of 0.51 mm, the NCT is assumed to underestimate the actual intraocular pressure in eyes with thinner and to overestimate it in eyes with thicker cornea by 1 mmHg per 0.01 mm difference of corneal thickness. This value changes with individual corneal tissue qualities and is not valid especially in presence of corneal edema.
在本研究中，对25名受试者（50只眼；眼压范围9 - 17 mmHg）使用Reichert非接触眼压计（NCT II）与Goldmann压平眼压计（GAT）进行了比较。NCT/GAT的关系满足法定验证所需的条件。两种仪器读数之间的显著差异可能由异常的中央角膜厚度引起，因为非接触眼压测量比传统压平眼压测量受角膜厚度的影响更大。从中央厚度0.51 mm开始，假设角膜厚度每相差0.01 mm，NCT会低估较薄角膜眼的实际眼压，而高估较厚角膜眼的实际眼压1 mmHg。该值会因个体角膜组织特性而变化，尤其在存在角膜水肿时无效。
