Objective:
To evaluate the role of contact lenses in visual rehabilitation after keratoplasty, focusing on their effectiveness and complications.
Key Findings:
- Scleral lenses were the most frequently prescribed (61% of cases).
- All studies reported significant improvement in visual acuity with contact lens correction.
- Most patients wore lenses comfortably for 8 to 12 hours daily.
- Contact lens dropout rates ranged from 0% to 39%, mainly due to intolerance or discomfort.
- Common complications included corneal graft rejection (18 eyes), conjunctival hyperemia (8 eyes), and corneal epithelial trauma (5 eyes).
Interpretation:
Contact lenses, especially scleral lenses, are effective for improving visual acuity post-keratoplasty; however, careful monitoring for complications is essential.
Limitations:
- Variability in dropout rates and complications across studies.
- Limited long-term data on the effects of contact lens wear post-keratoplasty, and potential biases in the studies reviewed.
Conclusion:
Scleral lenses enhance visual outcomes after keratoplasty but require careful fitting, monitoring, and patient education to minimize risks of complications and graft rejection.
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