Outcomes Following Transcorneal Diode Laser Ablation of Uveal Cysts: 48 Horses (2006-2020).

The research investigated the efficacy of using transcorneal diode laser ablation to treat horses with uveal cysts, a condition that can cause behavioural issues. The study found that this treatment was effective in managing behavioural or performance problems in many cases.

Research Method

In this retrospective study, the researchers:

• Reviewed records of horses that had undergone transcorneal cyst ablation using a diode laser to treat uveal cysts.
• Focused on information such as the horses’ age, gender, breed (signalment), and any behavioural or performance issues reported before the procedure.
• Documented any complications arising from the procedure.
• Contacted the horse owners to get information about whether the horses’ behavioural issues had been resolved after treatment.

Sample Size and Findings

The researchers:

• Studied a total of 48 horses, treating 70 eyes.
• Discovered that behaviour or performance problems were reported prior to the procedure in 35 horses. Follow-up data was, however, only available for 22 of these horses.
• Noted that 59% of the owners of these 22 horses reported significant improvements in the horses’ behaviour or performance after the procedure. A further 27% reported some improvement, and only 14% reported no improvement.
• Encouragingly, there were no significant complications reported in connection with the procedure.

Conclusion

Based on the collected data, especially from those owners for whom follow-up data was available, it was concluded that:

• Transcorneal diode laser ablation appeared to be an effective treatment for resolving behaviour or performance issues in horses thought to be caused by uveal cysts.
• However, more research is needed to better understand the effect of uveal cysts on equine behaviour and the impact of transcorneal diode laser ablation.

Suggestions were made for more prospective trials to better characterize the effects of the treatment.