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[Sclerostomy with an erbium YAG laser--the relationship with pulse energy]
A Mizota1, M Takasoh, Y Tsuyama
1Department of Ophthalmology, Chiba University School of Medicine, Japan.
Purpose:
To investigate the optimal pulse energy to do sclerostomy with an erbium YAG laser.
Materials And Methods:
The experiments were performed in enucleated porcine eyes. We changed pulse energy and examined the effects on surrounding tissue.
Results:
With the increase of pulse energy, the effects of the laser extended to the area surrounding the laser probe. At the threshold energy for doing full-thickness sclerostomy, the total energy was significantly higher than with higher pulse energy. And with pulse energy higher than 2 mJ, the total energy did not show any significant change. Histopathologically, the damaged area around sclerostomy became larger with the increase of pulse energy.
Conclusion:
The optimal energy to do full-thickness sclerostomy with this system seemed to be 2 mJ.