Original Research

Correlations between central corneal power, axial length, anterior chamber depth and central corneal thickness of near-emmetropic young university students in Palestine

Mohammed Aljarousha, Ansam A. Daqa, Fatma Qanan, Haya Murtaja, Nadeen Baraka
African Vision and Eye Health | Vol 80, No 1 | a571 | DOI: https://doi.org/10.4102/aveh.v80i1.571 | © 2021 Mohammed Aljarousha | This work is licensed under CC Attribution 4.0
Submitted: 07 April 2020 | Published: 26 August 2021

About the author(s)

Mohammed Aljarousha, Department of Optometry and Visual Science, Faculty of Allied Health Sciences, International Islamic University Malaysia, Kuantan, Malaysia; and, Department of Optometry, Faculty of Health Science, Islamic University of Gaza, Gaza, Palestine
Ansam A. Daqa, Department of Optometry, Faculty of Health Science, Islamic University of Gaza, Gaza, Palestine
Fatma Qanan, Department of Optometry, Faculty of Health Science, Islamic University of Gaza, Gaza, Palestine
Haya Murtaja, Department of Optometry, Faculty of Health Science, Islamic University of Gaza, Gaza, Palestine
Nadeen Baraka, Department of Optometry, Faculty of Health Science, Islamic University of Gaza, Gaza, Palestine


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Abstract

Background: Researchers have found that the refractive states of the eye are influenced by a variety of variables.

Aim: This study investigated the correlation between the central corneal power (CCP) and a number of variables, which include axial length (AL), anterior chamber depth (ACD) and the central corneal thickness (CCT) in near-emmetropic eyes of students.

Setting: The study was conducted in the Optometry Laboratory of the Islamic University-Gaza (IUG), Palestine.

Methods: In a prospective analysis, 200 near-emmetropic students were examined from February 2019 to May 2019 with an ultrasound scanner (A-scan), ultrasonic pachymeter and Visionix L79 automated refractometer Keratometer (ARK). Only the data of one eye were randomly chosen for investigation.

Results: The means and standard deviations (s.d.) of the CCP, AL, ACD and CCT for male students (n = 97) were 43.19 dioptre (D) ± 1.34 D, 23.54 mm ± 0.68 mm, 3.59 mm ± 0.26 mm and 549 µm ± 33 µm, respectively. Furthermore, the means ± s.d. of 103 female students were as follows: CCP 43.85 D ± 1.43 D, AL 22.94 mm ± 0.69 mm, ACD 3.35 mm ± 0.25 mm and CCT 543 µm ± 35 µm. There was a significant association between CCP and gender (p = 0.00). There was a negative significant correlation between CCP and AL for both the male (r = −0.64; p = 0.00) and the female (r = −0.71, p = 0.00) participants.

Conclusion: This study provided information on CCP, AL, ACD and CCT in near-emmetropic eyes of adults. In male students, CCP was flatter and AL was longer when compared with female Palestinian students.


Keywords

central corneal power; axial length; anterior chamber depth; ultrasonic pachymeter, automated refractometer-keratometer; corneal topography; Islamic University-Gaza; central corneal thickness

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