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. 2014:2014:503645.
doi: 10.1155/2014/503645. Epub 2014 Nov 5.

Variations in eyeball diameters of the healthy adults

Inessa Bekerman  1 , Paul Gottlieb  1 , Michael Vaiman  2
Affiliations

Variations in eyeball diameters of the healthy adults

Inessa Bekerman et al. J Ophthalmol. 2014.

Abstract

The purpose of the current research was to reevaluate the normative data on the eyeball diameters. Methods. In a prospective cohort study, the CT data of consecutive 250 adults with healthy eyes were collected and analyzed, and sagittal, transverse, and axial diameters of both eyeballs were measured. The data obtained from the left eye and from the right eye were compared. The correlation analysis was performed with the following variables: orbit size, gender, age, and ethnic background. Results. We did not find statistically significant differences correlated with gender of the patients and their age. The right eyeball was slightly smaller than the left one but this difference was statistically insignificant (P = 0.17). We did not find statistically significant differences of the eyeball sizes among the ethnicities we dealt with. Strong correlation was found between the transverse diameter and the width of the orbit (r = 0.88). Conclusion. The size of a human adult eye is approximately 24.2 mm (transverse) × 23.7 mm (sagittal) × 22.0-24.8 mm (axial) with no significant difference between sexes and age groups. In the transverse diameter, the eyeball size may vary from 21 mm to 27 mm. These data might be useful in ophthalmological, oculoplastic, and neurological practice.

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Figures

Figure 1
Figure 1
The retina to retina transverse diameter of the eye measured by computed tomography.
Figure 2
Figure 2
The cornea to optic canal anterior opening depth of the orbit and the sclera to sclera diameter of the eyeball.
See this image and copyright information in PMC

References

    1. Nayak J., Acharya U. R., Bhat P. S., Shetty N., Lim T.-C. Automated diagnosis of glaucoma using digital fundus images. Journal of Medical Systems. 2009;33(5):337–346. doi: 10.1007/s10916-008-9195-z. - DOI - PubMed
    1. Samarawickrama C., Pai A., Huynh S. C., Burlutsky G., Jonas J. B., Mitchell P. Measurement of optic nerve head parameters: comparison of optical coherence tomography with digital planimetry. Journal of Glaucoma. 2009;18(8):571–575. doi: 10.1097/IJG.0b013e3181996da6. - DOI - PubMed
    1. Kim J. M., Kim M. S., Jang H. J., Park K. H., Caprioli J. The association between retinal vessel diameter and retinal nerve fiber layer thickness in asymmetric normal tension glaucoma patients. Investigative Ophthalmology and Visual Science. 2012;53(9):5609–5614. doi: 10.1167/iovs.12-9783. - DOI - PubMed
    1. Raboel P. H., Bartek J., Andresen M., Bellander B. M., Romner B. Intracranial pressure monitoring: Invasive versus non-invasive methods-a review. Critical Care Research and Practice. 2012;2012 doi: 10.1155/2012/950393.950393 - DOI - PMC - PubMed
    1. Liebovitch L. S. Why the eye is round? In: Fischbarg J., editor. The Biology of the Eye. Boston, Mass, USA: Elsevier; 2006. pp. 5–6.