ISSN 0975-3583
 

Journal of Cardiovascular Disease Research



    Comparative assessment of the values of IOP measured by GAT and NCT with special emphasis on CCT


    Dr. Nirmal Kumar B, Dr. Pooja C Bhavi, Dr. Anupama, Dr. Deepashree V
    JCDR. 2023: 1139-1143

    Abstract

    The present study was undertaken to compare the values of IOP measured by GAT and NCT with special emphasis on CCT. Methods: It was a cross sectional observational study done on patients attending Ophthalmology OPD, Ballari during the period of January 2021 to June 2022 applying the following inclusion and exclusion criteria. 150 cases were included in the present study. Results: Out of 150 patients, 70 were male and 80 were female patients, that is, 46.7% were male and 53.3% were female patients. The majority of them were in the age group of 51 to 60 years. The mean ± SD IOP measured by the GAT was 14.47 mmHg ± 3.17 mmHg. The mean ± SD IOP measured by the NCT was 17.68 mmHg ± 2.91 mmHg. The mean ± SD CCT was 508.95 ± 33.79 microns. The difference between mean levels of IOP measured by NCT and GAT at different levels of CCT was statistically significant (p<0.001). The correlation between IOP measured by GAT and NCT was assessed among the various CCT groups. IOP measured by NCT and GAT significantly correlated among all the CCT groups (p<0.001). Conclusion: IOP measurement being the only modifiable risk factor in the management of glaucoma needs to be measured with great accuracy. In this study, there was a tendency for the NCT to overestimate IOP at lower and normal ranges and to underestimate IOP at the higher range when compared to GAT. NCT readings were significantly higher than the GAT readings but have shown a statistically significant moderate positive correlation with GAT. CCT significantly correlates with both the methods of tonometry, with the NCT showing a relatively stronger correlation

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    Volume & Issue

    Volume 14 Issue 4

    Keywords