CORRELATION BETWEEN INTRAOCULAR PRESSURE MEASUREMENTS USING APPLANATION TONOMETRY AND OCULAR RESPONSE ANALYZER (ORA) IN PRIMARY CONGENITAL GLAUCOMA (PCG) PATIENTS | ||
| Egyptian Journal of Clinical Ophthalmology | ||
| Article 7, Volume 5, Issue 2, December 2022, Pages 117-124 PDF (335 K) | ||
| Document Type: Original articles: include clinical trials, interventional research, Basic researches and clinically relevant laboratory investigations | ||
| DOI: 10.21608/ejco.2022.280974 | ||
| Authors | ||
| Shokier, G.; Khalil, N.; Esmael, A. | ||
| Ophthalmology dept., Faculty of Medicine, Cairo, Univ., Egypt | ||
| Abstract | ||
| Objective: This study aims to assess the degree of agreement between IOP measured using Perkins and Goldmann applanation tonometers, and both Goldmann correlated intraocular pressure (IOPg) and corneal compensated intraocular pressure (IOPcc) measured using ORA in PCG patients. Study Design: a prospective, single-center, observational study. Patients and Methods: All patients with PCG and fulfilling the inclusion criteria of the study underwent full ophthalmological examination and CCT measurement using ultrasound pachymetry. Applanation tonometer was used to measure the IOP. ORA was used to detect CH, CRF, IOPcc, and IOPg. Agreement between IOP measured using applanation tonometers, and both IOPg and IOPcc was tested using interclass correlation (ICC). Results: Forty three eyes of 28 patients were included. Twenty two were males. The mean patients age was 9.14 years. The mean IOP measured using applanation tonometry was 16.07 mmHg. The mean IOPg was 21.857 mmHg. The mean IOPcc was 24.17 mmHg. The mean difference of IOP measured by applanation and both IOPg and IOPcc was 5.78 mmHg and 8.1mmHg respectively with higher measurements by ORA. These differences were statistically significant (p =0.00). IOPg error % was statistically significantly positively correlated with CCT (p=0.009) and CRF (p=0.00) with correlation coefficient of 0.399 and 0.504 respectively. IOPcc error % was statistically significantly negatively correlated with CH (p=0.034) with correlation coefficient of - 0.324. Conclusion: In the current study, a statistically significant difference between the IOP measured using applanation tonometry and ORA obtained IOP namely IOPg and IOPcc was detected with higher ORA measurements. | ||
| Keywords | ||
| PCG; Applanation tonometry; ORA | ||
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