How is anterior chamber access established during trabeculectomy?

Updated: May 18, 2020
  • Author: Maria Hannah Pia Uyloan de Guzman, MD; Chief Editor: Hampton Roy, Sr, MD  more...
  • Print
Answer

Answer

Anterior chamber access

Anterior chamber (AC) access must be established prior to entering the AC at the surgical site. This allows the surgeon to manipulate the AC depth and the IOP by injecting or removing fluid. The paracentesis site or side port can be made using a needle or blade. The wound track should be directed away from the lens and parallel to the iris to avoid inadvertent lens injury. Some surgeons prefer to perform the paracentesis only after the antifibrotic agent has been applied because of fear of the antifibrotic agent entering the AC. See the image below.

The paracentesis should be placed at an easily acc The paracentesis should be placed at an easily accessible point and should be directed away from the lens as in this example of a right eye.

Did this answer your question?
Additional feedback? (Optional)
Thank you for your feedback!