PubMed · 5861647
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M A Galin, I Baras, J M McLean. How does a filtering bleb work?. https://pubmed.ncbi.nlm.nih.gov/5861647/
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The crystalline lens is implicated as a causative element in producing several forms of glaucoma. Etiologically they represent a diversity in the presentation of the glaucomatous process. These conditions include glaucoma related to: lens dislocation (ectopia lentis), lens swelling (intumescent cataract), classical pupillary block, aqueous misdirection--ciliary block, phacoanaphylaxis, lens particle, and phacolytic glaucoma. The management of elevated intraocular pressure often requires altering the intraocular relationship of anatomic structures surrounding the lens or lens removal. We will review the entities that produce these lens-induced glaucomatous conditions and suggest a rational approach to their diagnosis and treatment.
The authors conducted a multicenter, randomized, controlled trial to test whether the Schocket shunt with a larger shunt reservoir surface area would provide a lower final intraocular pressure than the double-plate Molteno implant. However, the Molteno implant produced a statistically lower intraocular pressure at 6 months compared with the Schocket shunt. Postoperative visual acuity, glaucoma medications, and complications were not statistically different.