Getting the Right Fit: Incorporating Enough Toricity in Scleral Lenses

Clinical Report: Getting the Right Fit: Incorporating Enough Toricity in Scleral Lenses

Overview

This report discusses the importance of incorporating adequate toricity in scleral lenses to enhance fit and performance. Recent studies indicate that aligning the landing zone to the scleral toricity significantly improves tear exchange and lens stability.

Background

Scleral lenses are increasingly utilized for vision correction, particularly in patients with irregular corneas. Proper fitting is crucial, as inadequate toricity can lead to complications such as poor lens stability and inadequate tear exchange, impacting patient comfort and lens effectiveness.

Data Highlights

No numerical data provided in the source material.

Key Findings

Aligning the landing zone to measured scleral toricity improves on-eye physiology and performance.
A toric landing zone enhances central and peripheral tear exchange compared to a spherical landing zone.
Increased fluorescein intensity is observed with a channel landing zone design, indicating better tear dynamics.
Appropriately dosed toricity reduces short-term decentration and improves rotational stability of the lens.
Quadrant-specific customization may be necessary for highly asymmetric sclerae to optimize lens fit.

Clinical Implications

Eye care providers should consider prescribing haptic toricity early in the fitting process for patients with non-spherical sclera. Additionally, incorporating peripheral design features can mitigate issues such as seal-off and fogging.

Conclusion

Reiterate the importance of ongoing research and its implications for future lens designs.

PentaVision

Contact Lens Spectrum