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The posterior staphyloma of pathologic myopia
Transactions of the American Ophthalmological Society
|January 1, 1977
Summary
Pathologic myopia with posterior staphyloma significantly impacts vision, causing legal blindness in 19% of patients. Understanding staphyloma types is crucial for diagnosis and prognosis in myopia research.
Area of Science:
- Ophthalmology
- Genetics
- Medical Imaging
Background:
- Pathologic myopia is a leading cause of visual impairment.
- Posterior staphyloma is a known complication of severe myopia.
- Accurate classification and understanding of posterior staphyloma are essential for patient management.
Purpose of the Study:
- To classify and analyze the types of posterior staphyloma in myopic patients.
- To determine the prevalence of different staphyloma types.
- To assess the visual outcomes and refractive characteristics associated with posterior staphyloma.
Main Methods:
- Ocular examination of 250 myopic patients with posterior staphyloma.
- Binocular indirect ophthalmoscopy, refraction, and axial length measurement.
- Classification of staphyloma into ten types: five primary and five compound.
Main Results:
- Ten types of posterior staphyloma were identified, with Type I (posterior pole) being the most prevalent.
- 19% of patients experienced legal blindness.
- 34.5% of affected eyes had visual acuity of 20/200 or less.
- A wide range of refractions and axial lengths were observed across staphyloma types.
Conclusions:
- Posterior staphyloma is a significant factor in the diagnosis and prognosis of pathologic myopia.
- The classification system provides a basis for further genetic studies in myopia.
- Understanding staphyloma morphology is critical for managing vision loss in high myopia.