Abstract
Purpose
To study the characteristic morphology and quantitatively evaluate the eye shape in different types of myopic maculopathy.
Methods
A total of 103 eyes from 65 patients with high myopic maculopathy were examined by spectral-domain optical coherence tomography (SD-OCT) and three-dimensional magnetic resonance imaging (3D MRI). The participants were classified into two groups, namely myopic traction maculopathy (MTM) eyes and non-MTM eyes, with SD-OCT imaging. Volume renderings and morphology analysis of the 3D MRI of the eyeball were obtained. Quantitative analysis was achieved in the calculation of vitreous volume and the three-dimensional diameters of the eyeball in three cardinal axes. The eye shape distribution and the diameters of the eyeball were compared between the two groups. Eye shape distribution, vitreous volume, and eyeball diameter were compared between MTM and non-MTM eyes.
Results
The MTM and non-MTM groups had a total of 68 and 35 eyes, respectively. A significant difference was found in the eye shape distribution (P<0.0001) between MTM and non-MTM eyes. Most of the MTM eyes had undergone a non-uniform expansion of the eyeball, whereas the non-MTM eyes had expanded uniformly. There was no significant difference (P>0.05) in either vitreous volume or other diameters between the two groups.
Conclusions
Non-uniform globe expansion and staphyloma formation might play an important role in the pathogenesis of MTM.
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Acknowledgements
This work was supported by the General Program (81570862) of the National Natural Science Foundation of China (to LL) and the General Program (81371019) of the National Natural Science Foundation of China (to YL). The funding organizations had no role in the design or conduct of this research.
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Yu, X., Ma, W., Liu, B. et al. Morphological analysis and quantitative evaluation of myopic maculopathy by three-dimensional magnetic resonance imaging. Eye 32, 782–787 (2018). https://doi.org/10.1038/eye.2017.263
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DOI: https://doi.org/10.1038/eye.2017.263
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