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Effect of scleral indentation on diode laser transscleral retinal photocoagulation
A Loewenstein1, A N Lamborne, J A Haller
1Johns Hopkins Microsurgery Advanced Design Laboratory (MADLAB), Wilmer Ophthalmological Institute, Johns Hopkins Hospital, Baltimore, MD, USA.
Background And Objective:
To evaluate the effect of the degree of scleral indentation with a modified AlGaAs diode laser for transscleral retinopexy in the rabbit.
Materials And Methods:
Transscleral diode laser photocoagulation was performed on the eyes of Dutch-belted rabbits using a modified AlGaAs diode laser with a wider base and various prism protrusions.
Results:
The transscleral photocoagulation generally became more efficient with an increasing amount of scleral indentation. Effectiveness increased up to a prism protrusion of 1.5 mm.
Conclusion:
This study shows that a wide-based AlGaAs diode laser with a 1.5-mm protrusion provides a more easily oriented probe for creating more efficient chorioretinal burns.