Cai Xueting, Qin Yi, Liu Sixiu, Cheng Zhewei, Lu Fan, Qu Jia, Chen Ding
Eye Hospital, Wenzhou Medical University, Wenzhou, Zhejiang, China.
Eye Center of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.
J Ophthalmol. 2022 May 9;2022:4933555. doi: 10.1155/2022/4933555. eCollection 2022.
To evaluate the influence of intraocular pressure (IOP) measurement while wearing bandage contact lens (BCL) and the effect of Pentacam and Corvis ST's correction systems.
It was a prospective comparative study. Forty healthy subjects (40 eyes) were included in this study. Eyes were measured using noncontact tonometer (NCT), Corvis ST, and Pentacam before and after wearing BCL. Pentacam's five correction formulas (Ehlers formula, Shah formula, Dresden formula, Kohlhaas formula, Orssengo/Pye formula) and Corvis ST's correction formulas (Ehlers formula and biomechanical corrected formula) were used to correct the IOP values before and after BCL wearing. The IOP values were compared, and the correction effect of different systems were evaluated.
The mean age of the subjects was 24.4 ± 0.60 years. The mean IOP obtained by NCT was 14.8 ± 3.2 mmHg before BCL wearing and was 15.7 ± 3.4 mmHg after BCL wearing. The mean IOP was significantly increased after BCL wearing (0.9 ± 2.9 mmHg, =0.05). Four of the five Pentacam's correction formulas (except Kohlhaas formula) showed no significant difference in the mean corrected IOP values before and after BCL wearing (all > 0.05). The mean IOP obtained by Corvis ST was 13.7 ± 2.8 mmHg before BCL wearing and was 15.0 ± 4.0 mmHg after BCL wearing. The mean IOP was significantly increased after BCL wearing (1.3 ± 2.4 mmHg, < 0.05). Corvis ST's correction formula (Ehlers formula other than biomechanical corrected formula) showed no significant difference in the mean corrected IOP values before and after BCL wearing ( > 0.05).
The IOP measurements over BCL by NCT and Corvis ST was found to be increased. The correction systems of Pentacam (Ehlers formula, Shah formula, Dresden formula, and Orssengo/Pye formula) and Corvis ST (Ehlers formula) are useful in correcting the IOP measuring deviation induced by BCL wearing.
评估佩戴绷带式隐形眼镜（BCL）时眼压（IOP）测量的影响以及Pentacam和Corvis ST校正系统的效果。
这是一项前瞻性比较研究。本研究纳入了40名健康受试者（40只眼）。在佩戴BCL前后，使用非接触眼压计（NCT）、Corvis ST和Pentacam对眼睛进行测量。Pentacam的五种校正公式（埃勒斯公式、沙阿公式、德累斯顿公式、科尔哈斯公式、奥尔森戈/派伊公式）和Corvis ST的校正公式（埃勒斯公式和生物力学校正公式）用于校正佩戴BCL前后的IOP值。比较IOP值，并评估不同系统的校正效果。
受试者的平均年龄为24.4±0.60岁。佩戴BCL前，NCT测得的平均IOP为14.8±3.2 mmHg，佩戴BCL后为15.7±3.4 mmHg。佩戴BCL后平均IOP显著升高（0.9±2.9 mmHg，P = 0.05）。Pentacam的五种校正公式中的四种（科尔哈斯公式除外）在佩戴BCL前后的平均校正IOP值上无显著差异（均P>0.05）。佩戴BCL前，Corvis ST测得的平均IOP为13.7±2.8 mmHg，佩戴BCL后为15.0±4.0 mmHg。佩戴BCL后平均IOP显著升高（1.3±2.4 mmHg，P<0.05）。Corvis ST的校正公式（生物力学校正公式除外的埃勒斯公式）在佩戴BCL前后的平均校正IOP值上无显著差异（P>0.05）。
发现NCT和Corvis ST在BCL上测量的IOP升高。Pentacam（埃勒斯公式、沙阿公式、德累斯顿公式和奥尔森戈/派伊公式）和Corvis ST（埃勒斯公式）的校正系统可有效校正佩戴BCL引起的IOP测量偏差。
