AADI Technique

  • Suresh Kumar
  • Sahil Thakur


Aurolab aqueous drainage implant (AADI) has been marketed in India by Aurolab, Madurai, India, since June 2013. AADI is a non-valved device that is useful in refractory glaucomas when other methods to control the intraocular pressure have failed. It is made of permanent implantable grade silicone, a proven material for patient safety [1]. The implant plate surface area is 350 mm2, and it has lateral wings that are designed to be placed under the rectus muscle. It is a 35 mm silicon tube attached to a 13 mm convex radius plate which conforms to the curvature of the globe. It has additional holes to facilitate anchoring of the end plate to the sclera so as to minimise device movement. There are various surgical methods of implanting a glaucoma drainage device which have been elucidated in this chapter.

Supplementary material

Video 10.1

Video demonstrating AADI implantation


  1. 1.
    Gowri Priya C, Sivakumar K, Pillai M, Krishnadas SR, Sriram R, Muthukkaruppan V. Evaluation of surface free energy of Aurolab Aqueous Drainage Implant (AADI) and its influence on cell adhesion property, in comparison with Baerveldt implant. Invest Ophthalmol Vis Sci. 2013;54(15):4475.Google Scholar
  2. 2.
    Riva I, Roberti G, Oddone F, Konstas AGP, Quaranta L. Ahmed glaucoma valve implant: surgical technique and complications. Clin Ophthalmol. 2017;11:357–67.CrossRefGoogle Scholar
  3. 3.
    Kansal S, Moster MR, Kim D, Schmidt CM Jr, Wilson RP, Katz LJ. Effectiveness of nonocclusive ligature and fenestration used in Baerveldt aqueous shunts for early postoperative intraocular pressure control. J Glaucoma. 2002;11(1):65–70.CrossRefGoogle Scholar
  4. 4.
    Thakur S, Ichhpujani P, Kumar S. Grafts in glaucoma surgery: a review of the literature. Asia Pac J Ophthalmol (Phila). 2017;6(5):469–76.Google Scholar
  5. 5.
    Kaushik S, Kataria P, Raj S, Pandav SS, Ram J. Safety and efficacy of a low-cost glaucoma drainage device for refractory childhood glaucoma. Br J Ophthalmol. 2017;101(12):1623–7.CrossRefGoogle Scholar
  6. 6.
    Bayer A, Onol M. Clinical outcomes of Ahmed glaucoma valve in anterior chamber versus ciliary sulcus. Eye (Lond). 2017;31(4):608–14.CrossRefGoogle Scholar

Copyright information

© Springer Nature Singapore Pte Ltd. 2019

Authors and Affiliations

  • Suresh Kumar
    • 1
  • Sahil Thakur
    • 2
  1. 1.Department of OphthalmologyGMCHChandigarhIndia
  2. 2.Department of Ocular EpidemiologySingapore Eye Research InstituteSingaporeSingapore

Personalised recommendations