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Myopic maculopathy imaged by optical coherence tomography: the beijing eye study
Qi Sheng You1, Xiao Yan Peng1, Liang Xu1
1Beijing Institute of Ophthalmology, Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing Ophthalmology and Visual Science Key Lab, Beijing, China.
Ophthalmology
|July 23, 2013
Summary
Maculoschisis is the most common macular change in highly myopic eyes, detected via optical coherence tomography (OCT). Disruption of the photoreceptor inner segment/outer segment interface and epiretinal membranes significantly impact visual acuity in these patients.
Area of Science:
- Ophthalmology
- Medical Imaging
- Retinal Diseases
Background:
- High myopia is a significant risk factor for various ocular pathologies.
- Optical coherence tomography (OCT) is crucial for visualizing macular changes in myopic eyes.
Purpose of the Study:
- To characterize the prevalence and features of myopia-related macular findings using OCT in a population-based cohort.
- To identify specific OCT findings associated with reduced visual acuity in highly myopic individuals.
Main Methods:
- A population-based study involving 3468 participants aged 50 years and above from the Beijing Eye Study 2011.
- Ophthalmic examination including enhanced depth imaging OCT of the macula was performed on 6530 eyes of highly myopic participants (refractive error ≤-6 D or axial length ≥26.5 mm).
Main Results:
- Maculoschisis was the most frequent OCT finding (0.8%), followed by incomplete posterior vitreous detachment (0.7%) and photoreceptor inner segment/outer segment interface disruption (0.6%).
- The overall prevalence of any myopic maculopathy was 1.71%.
- Disruption of the photoreceptor inner segment/outer segment interface and epiretinal membranes were significantly associated with worse best-corrected visual acuity.
Conclusions:
- Maculoschisis is the predominant macular alteration in highly myopic eyes, as visualized by OCT.
- Specific OCT findings, particularly photoreceptor disruption and epiretinal membranes, are critical determinants of visual function in high myopia.
