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What Is Myopic Maculopathy?

Myopic maculopathy refers to structural damage in the macula caused by high or pathologic myopia. Excessive axial elongation stretches the retina, choroid, and sclera, leading to atrophy, lacquer cracks, and sometimes choroidal neovascularization. These changes reduce central visual acuity and contrast sensitivity. Myopic maculopathy is a major cause of visual impairment in regions with high myopia prevalence. The severity of macular change often tracks with axial length and age.

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What Is Myopic Maculopathy?

Myopic maculopathy refers to structural damage in the macula caused by high or pathologic myopia. Excessive axial elongation stretches the retina, choroid, and sclera, leading to atrophy, lacquer cracks, and sometimes choroidal neovascularization. These changes reduce central visual acuity and contrast sensitivity. Myopic maculopathy is a major cause of visual impairment in regions with high myopia prevalence. The severity of macular change often tracks with axial length and age.

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Types and Structural Changes

Myopic maculopathy includes several patterns, such as diffuse chorioretinal atrophy, patchy atrophy, lacquer cracks, myopic choroidal neovascular membranes, and macular atrophic scars. Posterior staphyloma, where the eye wall bulges outward, is common in advanced cases and alters retinal contour. Thinning of the choroid and retinal pigment epithelium reduces support for photoreceptors. Over time, these changes can coalesce into large atrophic areas that severely limit central vision. Classification systems grade severity based on fundus appearance.

Clinical Features and Imaging Findings

Patients report blurred central vision, metamorphopsia, and difficulty with fine detail tasks, especially as complications like CNV or foveoschisis develop. On fundus exam, the posterior pole shows peripapillary atrophy, tessellated fundus, and areas of chorioretinal atrophy. Lacquer cracks appear as fine, yellowish linear breaks in Bruch membrane. Optical coherence tomography reveals thinning, staphyloma contour, foveoschisis, or subretinal fluid when CNV is present. OCT angiography and fluorescein angiography help identify neovascular membranes and leakage.

How Is Myopic Maculopathy Diagnosed?

Diagnosis relies on a history of high myopia combined with characteristic fundus and imaging findings. Refraction and axial length measurement document the degree of myopia and globe elongation. OCT is central for assessing retinal structure, detecting foveoschisis, and monitoring CNV responses to treatment. Wide field imaging helps map staphyloma and peripheral degeneration. Differential diagnosis includes age related macular degeneration and other causes of macular atrophy, which can sometimes coexist.

Management and Prognosis

Management focuses on treating complications and slowing progression where possible. Intravitreal anti VEGF injections are used for myopic CNV and often improve or stabilize vision. Careful monitoring detects new neovascular activity or foveoschisis that might need surgical intervention. Myopia control strategies such as low dose atropine, orthokeratology, or multifocal contact lenses can reduce progression in children, potentially lowering lifetime risk of maculopathy. Low vision support becomes important for advanced cases with severe central loss. Lifelong follow up is recommended.

FAQs About Myopic Maculopathy

Does every person with high myopia develop myopic maculopathy?

No, but risk rises with higher axial length and older age. Regular retinal exams help catch early changes in high myopes.

Can myopic maculopathy be reversed?

Structural atrophy cannot be reversed, but treatment of CNV and other complications can preserve or improve vision and slow further damage.

How is myopic CNV different from age-related CNV?

Both involve abnormal vessels under the macula, but myopic CNV occurs in elongated eyes with chorioretinal thinning, often at a younger age. Treatment principles are similar.

Can myopia control in childhood lower the chance of maculopathy later?

Evidence suggests that slowing axial elongation reduces the likelihood of very high myopia, which in turn lowers maculopathy risk.

References

EyeWiki (American Academy of Ophthalmology). ?Pathologic Myopia (Myopic Degeneration).? https://eyewiki.org/Pathologic_Myopia_%28Myopic_Degeneration%29

American Academy of Ophthalmology (AAO). ?Pathologic Myopia.? https://www.aao.org/eye-health/diseases/pathologic-myopia

ARVO Journals (IOVS). ?IMI Pathologic Myopia.? https://iovs.arvojournals.org/article.aspx?articleid=2772537

National Library of Medicine (PMC). ?Pathologic Myopia: An Overview of the Current Understanding and Interventions.? https://pmc.ncbi.nlm.nih.gov/articles/PMC7731360/

National Library of Medicine (PMC). ?IMI ? Defining and Classifying Myopia: A Proposed Set of Standards for Clinical and Epidemiologic Studies.? https://pmc.ncbi.nlm.nih.gov/articles/PMC6735818/