Ultrasound biomicroscopy of filtration blebs

Authors

  • Jeffrey M Liebmann Department of Ophthalmology, the New York Eye and Ear Infirmary, New York, NY, USA
  • Celso Tello Department of Ophthalmology, the New York Eye and Ear Infirmary, New York, NY, USA
  • Douglas Grayson Department of Ophthalmology, the New York Eye and Ear Infirmary, New York, NY, USA
  • Thomas Chi Department of Ophthalmology, the New York Eye and Ear Infirmary, New York, NY, USA
  • Robert Ritch Department of Ophthalmology, the New York Eye and Ear Infirmary, New York, NY, USA

Abstract

Aim: To assess the internal anatomy of filtering blebs in vivo.

Materials and methods: We performed high-resolution, high-frequency ultrasound biomicroscopy on filtration blebs with a range of clinical appearances to evaluate the internal ostium, scleral flap, and subconjunctival space in eachtype ofbleb.

Results: Diffuse, spongy, thin-walled and cystic, encapsulated, and failed blebs were successfully imaged without morbidity. The pattern of subconjunctival aqueous flow was assessed and sites of blockage to flow determined.

Conclusion: Improved knowledge of the internal structure of filtration blebs should allow us to recognize earlier stages of bleb failure and characteristics of nonfunctional blebs with the intent of manipulating bleb structure to establish or improve function.

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Published

1997-12-01

How to Cite

1.
Liebmann JM, Tello C, Grayson D, Chi T, Ritch R. Ultrasound biomicroscopy of filtration blebs. Hong Kong J Ophthalmol [Internet]. 1997Dec.1 [cited 2021Feb.27];1(3):110-4. Available from: https://hkjo.hk/index.php/hkjo/article/view/187

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Section

Original Articles