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"Coming up short" with an illuminated microcatheter for circumferential trabeculotomy externo in the buphthalmic infant eye: frequency and options.

Publication ,  Journal Article
Tauscher, RG; Haynie, ML; Glaser, TS; Freedman, SF
Published in: J AAPOS
December 2022

An illuminated microcatheter is frequently used to perform trabeculotomy ab externo in infants with primary congenital glaucoma (PCG). Enlarged corneas in these children can make it challenging to traverse 360o of Schlemm's canal (SC) before reaching the passable limit of the microcatheter. Using basic geometry, we predicted that the iTrack microcatheter would fail to cannulate SC completely in eyes with a horizontal corneal diameter (HCD) >14.8 mm. A retrospective chart review of patients with PCG undergoing angle surgery identified the frequency of corneas with HCD >14.8 mm and confirmed that this calculated cut-off predicts which eyes can-or cannot-be cannulated successfully (ie, 360o) by the iTrack microcatheter.

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Published In

J AAPOS

DOI

EISSN

1528-3933

Publication Date

December 2022

Volume

26

Issue

6

Start / End Page

340 / 342

Location

United States

Related Subject Headings

  • Treatment Outcome
  • Trabeculectomy
  • Tonometry, Ocular
  • Retrospective Studies
  • Ophthalmology & Optometry
  • Intraocular Pressure
  • Infant
  • Humans
  • Child
  • Catheters
 

Citation

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ICMJE
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Tauscher, R. G., Haynie, M. L., Glaser, T. S., & Freedman, S. F. (2022). "Coming up short" with an illuminated microcatheter for circumferential trabeculotomy externo in the buphthalmic infant eye: frequency and options. J AAPOS, 26(6), 340–342. https://doi.org/10.1016/j.jaapos.2022.09.002
Tauscher, Robert G., Matthew L. Haynie, Tanya S. Glaser, and Sharon F. Freedman. “"Coming up short" with an illuminated microcatheter for circumferential trabeculotomy externo in the buphthalmic infant eye: frequency and options.J AAPOS 26, no. 6 (December 2022): 340–42. https://doi.org/10.1016/j.jaapos.2022.09.002.
Tauscher, Robert G., et al. “"Coming up short" with an illuminated microcatheter for circumferential trabeculotomy externo in the buphthalmic infant eye: frequency and options.J AAPOS, vol. 26, no. 6, Dec. 2022, pp. 340–42. Pubmed, doi:10.1016/j.jaapos.2022.09.002.
Journal cover image

Published In

J AAPOS

DOI

EISSN

1528-3933

Publication Date

December 2022

Volume

26

Issue

6

Start / End Page

340 / 342

Location

United States

Related Subject Headings

  • Treatment Outcome
  • Trabeculectomy
  • Tonometry, Ocular
  • Retrospective Studies
  • Ophthalmology & Optometry
  • Intraocular Pressure
  • Infant
  • Humans
  • Child
  • Catheters