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Glaucoma in microspherophakia: presenting features and treatment outcomes
Sirisha Senthil1, Harsha L Rao, Nguyen T Q Hoang
1L.V. Prasad Eye Institute, Kallam Anji Reddy Campus, Hyderabad, India.
Journal of Glaucoma
|October 13, 2012
Summary
Glaucoma affects over half of individuals with microspherophakia, primarily causing angle closure and leading to blindness in 20-30% of cases. Early intervention is crucial for managing this condition.
Area of Science:
- Ophthalmology
- Genetics
- Internal Medicine
Background:
- Microspherophakia is a rare congenital condition characterized by small, spherical lenses.
- It is often associated with systemic syndromes like Marfan and Weill-Marchesani syndromes.
- Glaucoma is a known complication of microspherophakia, but its clinical features and outcomes require further elucidation.
Purpose of the Study:
- To investigate the clinical characteristics of glaucoma in patients with microspherophakia.
- To analyze the management strategies employed for glaucoma in this population.
- To evaluate the treatment outcomes and visual prognosis in eyes with microspherophakia and glaucoma.
Main Methods:
- Retrospective review of medical records for 159 eyes of 80 subjects diagnosed with microspherophakia.
- Glaucoma diagnosis based on intraocular pressure (IOP) ≥22 mm Hg and/or glaucomatous optic disc damage.
- Angle closure defined as occludable angles >270 degrees; gonioscopy performed.
- Analysis of treatment modalities including medical therapy, laser iridotomy, and surgical interventions like trabeculectomy.
Main Results:
- Glaucoma was present in 51% of eyes (81/159).
- Angle closure glaucoma was the predominant type (75% of cases).
- Significant visual impairment and blindness (20-30%) were observed due to glaucoma.
- Trabeculectomy demonstrated a 6-year complete success rate of 77%, decreasing to 61% by 8 years.
Conclusions:
- Microspherophakia is frequently associated with glaucoma, predominantly angle closure type.
- A substantial proportion of patients with microspherophakia-related glaucoma experience irreversible vision loss.
- Effective management, including surgical intervention, is essential to preserve vision, though long-term success rates for trabeculectomy may decline.
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