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  • Title: Morphology of the trabecular meshwork three years after Erbium:YAG laser trabecular ablation.
    Author: Dietlein TS, Jacobi PC, Mietz H, Krieglstein GK.
    Journal: Ophthalmic Surg Lasers; 2001; 32(6):483-5. PubMed ID: 11725775.
    Abstract:
    Laser trabecular ablation (LTA) is an abinterno approach with the purpose to improve outflow facility by removing trabecular tissue and open Schlemm's canal. In a blind eye with secondary glaucoma following silicone oil surgery, Erbium:YAG LTA had been performed applying 12 neighboring single laser pulses (5-7 mJ pulse energy, 200 micros pulse duration) to the trabecular meshwork. Enucleation was performed three years after the procedure that did not achieve pressure control. Light-microscopy revealed neither marked scarring nor endothelial proliferation in the treated trabecular meshwork. However, most of the recognizable ablation craters failed to open Schlemm's canal. Although limited scar formation within the trabecular meshwork after LTA is a promising aspect, the present technique of Er:YAG LTA still needs technical and surgical improvements to guarantee reliable and reproducible openings of Schlemm's canal.
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