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Year : 2017  |  Volume : 55  |  Issue : 2  |  Page : 150-153

Encysted bleb following ahmed glaucoma valve surgery: A histopathological case report

Glaucoma Clinic, M. N. Eye Hospital, Chennai, Tamil Nadu, India

Correspondence Address:
Dr. Maithri B Arunkumar
No. 781, T. H. Road, Tondiarpet, Chennai - 600 021, Tamil Nadu
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/tjosr.tjosr_18_17

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A 27-year-old male patient, with family history of glaucoma was diagnosed to have iridocorneal endothelial syndrome in the left eye. He was treated initially with topical medications and subsequently underwent trabeculectomy with the express implant. Postoperatively, the bleb was found to be well functioning for few months and later became flat and he was given subconjunctival (SC) 0.1 ml 5-Flourouracil (FU) injection with bleb needling. As the bleb did not form despite these measures, he underwent a second surgery with an Ahmed glaucoma valve (FP7) implantation. On review after 4 weeks, the patient had developed a large encysted bleb. Needling was done again and another dose of SC 5-FU 0.1 ml was given. The bleb became encysted again after 6 weeks, hence bleb wall excision was done, and the cyst wall was sent for histopathological analysis which revealed presence of loculated cysts and goblet cells but no inflammation. To the best of our knowledge, there have been very few histopathological case reports of encysted bleb published in peer-reviewed literature.

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