Clinical Scorecard: The Scleral Lens Vault: The Truth About Stem Cells
At a Glance
| Category | Detail |
|---|---|
| Condition | Scleral Lens Fitting and Corneal Stem Cell Integrity |
| Key Mechanisms | Understanding the relationship between scleral lens contact and corneal stem cell health. |
| Target Population | Patients requiring specialty contact lenses, particularly scleral lenses. |
| Care Setting | Optometry clinics and specialty lens fitting practices. |
Key Highlights
- Scleral lenses should not contact the limbus to prevent mechanical insult to epithelial cells.
- Corneal stem cells are located deep within the limbal area and are not directly affected by scleral lens pressure.
- Mechanical insults from lens contact can lead to epithelial cell breakdown and neovascularization.
- Other factors like chemical burns and chronic inflammation can harm corneal stem cells.
- Evidence-based understanding is crucial for effective scleral lens fitting.
Guideline-Based Recommendations
Diagnosis
- Assess corneal health and stem cell integrity before fitting scleral lenses.
Management
- Ensure scleral lenses do not touch the limbus during fitting.
Monitoring & Follow-up
- Regularly evaluate for signs of epithelial breakdown and neovascularization.
Risks
- Consider risks of chemical burns, chronic inflammation, and other ocular traumas that may affect stem cells.
Patient & Prescribing Data
Individuals requiring scleral lenses for vision correction or ocular surface disease.
Scleral lenses can be beneficial if fitted correctly, avoiding limbal contact.
Clinical Best Practices
- Educate patients on the importance of proper lens fitting and care.
- Stay updated on evidence-based practices regarding scleral lens fitting.
- Monitor patients for complications associated with scleral lens wear.
Related Resources & Content
- Hertsenberg AJ, Funderburgh JL. Stem cells in the cornea.
- Chee KY, Kicic A, Wiffen SJ. Limbal stem cells: the search for a marker.
- Park CY. An updated narrative review of treatment for limbal epithelial stem cell deficiency.
- Ruan Y, Jiang S, Musayeva A, et al. Corneal epithelial stem cells-physiology, pathophysiology and therapeutic options.
- Formentin L, et al. Analysis and optimization of the landing zone parameters of a sclera lens model.
- Ahmad S. Concise review: limbal stem cell deficiency, dysfunction, and distress.
- Nixon AD, et al. Corneal epithelial bullae after short-term wear of small diameter scleral lenses.
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