Changes in angle configuration after phacoemulsification measured by anterior segment optical coherence tomography

Winifred P. Nolan, Jovina L. See, Tin Aung, David S. Friedman, Yiong Huak Chan, Scott D. Smith, Ce Zheng, David Huang, Paul J. Foster, Paul T K Chew

Research output: Contribution to journalArticle

46 Citations (Scopus)

Abstract

PURPOSE: To measure changes in angle width after phacoemulsification and intraocular lens (IOL) implantation using anterior segment optical coherence tomography (AS-OCT). MATERIALS AND METHODS: Twenty-one patients undergoing cataract surgery were recruited from the National University Hospital, Singapore. AS-OCT images were obtained of nasal and temporal angle quadrants before and at 1-month after surgery. Optical measurements of central anterior chamber depth were obtained, and gonioscopic measurement of angle width was recorded. AS-OCT angle width parameters measured in the nasal and temporal quadrants included the angle opening distance at 500'μm (AOD500) anterior to the scleral spur and the trabecular iris surface area at 750'μm (TISA750) anterior to the scleral spur. Preoperative and postoperative measurements were compared using paired samples t tests. RESULTS: Data were collected from 21 eyes of 21 subjects with cataract. Seven subjects also had gonioscopic evidence of primary angle closure. Mean anterior chamber depth increased from 2.92 (±0.54) to 4.24 (±0.57)'mm (P=0.044) after cataract extraction. There was a significant increase in AS-OCT parameters for both nasal and temporal angles after surgery. An 88.2% increase in AOD500 was measured for the nasal angle quadrant with a mean difference of 213.9 (±173)'μm (P

Original languageEnglish (US)
Pages (from-to)455-459
Number of pages5
JournalJournal of Glaucoma
Volume17
Issue number6
DOIs
StatePublished - Sep 2008
Externally publishedYes

Fingerprint

Phacoemulsification
Optical Coherence Tomography
Nose
Anterior Chamber
Cataract
Intraocular Lens Implantation
Cataract Extraction
Singapore
Iris

Keywords

  • Angle
  • Anterior segment OCT
  • Phacoemulsification
  • Quantitative

ASJC Scopus subject areas

  • Ophthalmology

Cite this

Nolan, W. P., See, J. L., Aung, T., Friedman, D. S., Chan, Y. H., Smith, S. D., ... Chew, P. T. K. (2008). Changes in angle configuration after phacoemulsification measured by anterior segment optical coherence tomography. Journal of Glaucoma, 17(6), 455-459. https://doi.org/10.1097/IJG.0b013e3181650f31

Changes in angle configuration after phacoemulsification measured by anterior segment optical coherence tomography. / Nolan, Winifred P.; See, Jovina L.; Aung, Tin; Friedman, David S.; Chan, Yiong Huak; Smith, Scott D.; Zheng, Ce; Huang, David; Foster, Paul J.; Chew, Paul T K.

In: Journal of Glaucoma, Vol. 17, No. 6, 09.2008, p. 455-459.

Research output: Contribution to journalArticle

Nolan, WP, See, JL, Aung, T, Friedman, DS, Chan, YH, Smith, SD, Zheng, C, Huang, D, Foster, PJ & Chew, PTK 2008, 'Changes in angle configuration after phacoemulsification measured by anterior segment optical coherence tomography', Journal of Glaucoma, vol. 17, no. 6, pp. 455-459. https://doi.org/10.1097/IJG.0b013e3181650f31
Nolan, Winifred P. ; See, Jovina L. ; Aung, Tin ; Friedman, David S. ; Chan, Yiong Huak ; Smith, Scott D. ; Zheng, Ce ; Huang, David ; Foster, Paul J. ; Chew, Paul T K. / Changes in angle configuration after phacoemulsification measured by anterior segment optical coherence tomography. In: Journal of Glaucoma. 2008 ; Vol. 17, No. 6. pp. 455-459.
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