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Unilateral Myopia With Posterior Staphyloma.

Malik Muhammad Hamza Khan¹, Muhammad Rayyan Malik², Muhammad Bilal Malik¹

¹Ophthalmology and Visual Sciences, Aga Khan University Hospital, Karachi, PAK.

|July 28, 2025

Summary

Unilateral pathological myopia with posterior staphyloma is a rare condition. This case highlights its atypical presentation and the importance of thorough imaging for diagnosis and management.

Keywords:

high myopia ocular imaging pathologic myopia posterior staphyloma unilateral myopia unilateral pathological myopia visual health visual impairment

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Area of Science:

Ophthalmology
Medical Imaging
Genetics

Background:

Pathological myopia, a leading cause of visual impairment, typically affects both eyes.
Unilateral presentations and posterior staphyloma are rare, necessitating recognition of atypical features for diagnosis.

Observation:

A woman in her 30s presented with unilateral proptosis and painless vision loss in her right eye.
High myopia (-24.75 D sphere, -4.35 D cylinder) with macular posterior staphyloma was diagnosed in the right eye.
Imaging revealed asymmetric globe enlargement, scleral thinning, and retinal/choroidal thinning.

Findings:

Diagnosis of unilateral pathological myopia with type 2 posterior staphyloma was confirmed.
Imaging studies (MRI, OCT, B-scan) supported the diagnosis and excluded other orbital pathologies.
No specific cause was identified, emphasizing the condition's complexity.

Implications:

This case underscores the importance of comprehensive clinical and imaging evaluations for diagnosing rare unilateral pathological myopia.
Management focuses on monitoring and protecting the unaffected eye due to the lack of definitive treatment.
Understanding atypical presentations is crucial for ophthalmologists managing high myopia and its complications.