title: Trocar anterior chamber maintainer: Improvised infusion technique.
abstract: We present an improvised technique of infusion that uses a trocar cannula as an anterior chamber maintainer (ACM). Although routinely used in posterior segment surgery, the trocar cannula has been infrequently used in complex anterior segment procedures. The trocar ACM creates a transconjunctival biplanar wound of appropriate size that is self-sealing and overcomes the shortcomings of an ACM, such as spontaneous extrusion and forced introduction into the eye from variability in the size of the corneal paracentesis incision. Constant infusion inflow through the trocar ACM is used to maintain positive intraocular pressure through a self-sealing sclerotomy incision at the limbus.
  
  
  BACKGROUND
  No author has a financial or proprietary interest in any material or method mentioned.
authors.affiliation: From the Dr. Agarwal's Eye Hospital & Research Centre (Amar Agarwal, Kumar, Ashvin Agarwal), Chennai, and Narang Eye Care & Laser Centre (Narang), Ahmedabad, India. Electronic address: dragarwal@vsnl.com.
authors.forename: Amar
authors.initials: A
authors.lastname: Agarwal
authors.affiliation: From the Dr. Agarwal's Eye Hospital & Research Centre (Amar Agarwal, Kumar, Ashvin Agarwal), Chennai, and Narang Eye Care & Laser Centre (Narang), Ahmedabad, India.
authors.forename: Priya
authors.initials: P
authors.lastname: Narang
authors.affiliation: From the Dr. Agarwal's Eye Hospital & Research Centre (Amar Agarwal, Kumar, Ashvin Agarwal), Chennai, and Narang Eye Care & Laser Centre (Narang), Ahmedabad, India.
authors.forename: Dhivya A
authors.initials: DA
authors.lastname: Kumar
authors.affiliation: From the Dr. Agarwal's Eye Hospital & Research Centre (Amar Agarwal, Kumar, Ashvin Agarwal), Chennai, and Narang Eye Care & Laser Centre (Narang), Ahmedabad, India.
authors.forename: Ashvin
authors.initials: A
authors.lastname: Agarwal
mesh_terms: D000867:Anterior Chamber / Q000033:anatomy & histology / Q000601:surgery*; D002404:Catheterization / Q000295:instrumentation*; D006801:Humans; D007263:Infusions, Parenteral / Q000379:methods*; D007429:Intraocular Pressure / Q000502:physiology; D019654:Lens Implantation, Intraocular; D019060:Minimally Invasive Surgical Procedures; D012599:Sclerostomy / Q000379:methods; D041623:Tomography, Optical Coherence