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In page Conjunctivochalasis:

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Further techniques have been developed, such as reservoir restoration, which aim to replace the degenerated Tenon's, deepen the inferior fornix to restore the normal anatomy and physiology, and facilitate restoration of the normal tear film[3]. In this surgical procedure, a crescent-shaped area of the conjunctiva is recessed along a limbal peritomy with a maximum anterior-posterior width no more than 3 mm. Diseased and dissolved Tenon's are undermined leaving a large bare scleral defect. Cryopreserved amniotic membrane is slid over the scleral bed with fibrin glue and tucked under the conjunctiva to recreate the fornix. Immediately postop, the surgeon should note an improved anatomical definition and deepening of the inferior fornix.[citation needed]