PMC7647454_01
Comparison of conventional Ahmed glaucoma valve (AGV) implantation featuring scleral plate fixation, and free-plate AGV implantation.. In conventional AGV implantation, the body of the AGV is fixed on both sides to the sclera at the front edge of the plate (A). Free-plate AGV implantation, does not feature scleral fixation (B).
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PMC7647454_01_pone.0241886.g001.jpg
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In FPAGV implantation, the scleral fixation of the plate was skipped and the center of the plate was located between the superior and lateral rectus muscles (Fig 1).