Results of Trans-Corneal Reduction of Anterior Lens Luxation in 38 Dogs, 41 Eyes: Retrospective Study (2020-2023).

TCR achieves 68% anatomical success but provides only temporary vision (median 100 days)

This retrospective study evaluated trans-corneal reduction (TCR) as a treatment for anterior lens luxation in 38 dogs (41 eyes) between 2020-2023. TCR was successful in 68.2% of cases (28/41 eyes), with the lens repositioned posterior to the iris. However, recurrence occurred in 35.7% of successfully treated eyes within 2-120 days. Among successful cases, 57% retained vision post-procedure, though 87.5% of visual eyes maintained vision for a median of 100 days. Notably, 42.9% of eyes remained non-visual before and after TCR. Glaucoma was the primary cause of vision loss in all but one case (retinal detachment). The authors conclude TCR achieves moderate success rates but limited long-term visual outcomes. They recommend restricting TCR to cases where general anesthesia is contraindicated, financial constraints exist, or the eye is already blind, rather than as a primary treatment for preserving vision.

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