Author(s):
Dr. Orji Emele1, Favour Nkasiobi*2, Dr. Azuamah Young Christian3, Dr. Daniel Nwosu4, Edith5, Prof. Ikoro Nwakaego6, Dr. Nkemka7, Victoria Ezinne8
Email(s):
1favouremeleorji25@gmail.com
Address:
Department of Optometry, Federal University of Technology, Owerri, Nigeria
Published In:
Volume - 4,
Issue - 11,
Year - 2025
DOI:
https://doi.org/10.71431/IJRPAS.2025.41103 
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ABSTRACT:
Central corneal thickness (CCT) and intraocular pressure (IOP) are two essential parameters in ocular assessment, both of which can be influenced by refractive status. Understanding their correlation across different refractive error types is critical for accurate diagnosis and management of ocular conditions.
This study aimed to evaluate the correlation between CCT and IOP among individuals with myopia and hyperopia, using emmetropic eyes as the control group.
A comparative cross-sectional observational study was conducted at the Police Hospital, Abuja, Nigeria, from January to April 2025. A total of 78 participants aged 18–70 years were included, comprising 37 myopes and 41 hyperopes. An additional 35 randomly selected emmetropic eyes served as the control group. CCT was measured using the SUOER SW-1000 AP pachymeter, and IOP was measured with the Reichert AT550 tonometer. Data analysis was performed using IBM SPSS version 25, with correlation analysis used to determine relationships between CCT and IOP.
A statistically significant positive correlation was found between CCT and IOP in myopic eyes (r = 0.349, p = 0.037), while hyperopic eyes showed a weak and statistically non-significant correlation (r = 0.209, p = 0.190). Emmetropic group, presented a non-significant correlation (r = 0.157), (p = 0.376).
The findings suggest that central corneal thickness has a significant influence on IOP in myopic individuals but not in hyperopic or emmetropic eyes. These results underscore the importance of considering CCT when interpreting IOP, especially in patients with myopia, to avoid misdiagnosis of ocular conditions.
Cite this article:
Dr. Orji Emele, Favour Nkasiobi*, Dr. Azuamah Young Christian, Dr. Daniel Nwosu, Edith, Prof. Ikoro Nwakaego, Dr. Nkemka, Victoria Ezinne. Correlation of Central Corneal Thickness (CCT) and Intraocular Pressure (IOP) in Myopes and Hyperopes. IJRPAS, November 2025; 4(11): 23-33.DOI: https://doi.org/https://doi.org/10.71431/IJRPAS.2025.41103