June 2013
Volume 54, Issue 15
Free
ARVO Annual Meeting Abstract  |   June 2013
Change in Intraocular Pressure and Angle of Eyes with Primary Angle Closure Suspects One Year after Laser Peripheral Iridotomy
Author Affiliations & Notes
  • Dapeng Mou
    Beijing Tongren hospital, Beijing, China
  • Footnotes
    Commercial Relationships Dapeng Mou, None
  • Footnotes
    Support None
Investigative Ophthalmology & Visual Science June 2013, Vol.54, 1853. doi:
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    • Get Citation

      Dapeng Mou, ; Change in Intraocular Pressure and Angle of Eyes with Primary Angle Closure Suspects One Year after Laser Peripheral Iridotomy. Invest. Ophthalmol. Vis. Sci. 2013;54(15):1853.

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      © ARVO (1962-2015); The Authors (2016-present)

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Abstract
 
Purpose
 

To report the change in intraocular pressure (IOP), and anterior chamber angle following laser peripheral iridotomy (LPI) in primary angle closure suspects

 
Methods
 

134 bilateral PACS (non-visibility of the posterior trabecular meshwork for ≥ 180 degrees on gonioscopy) ,aged 40 years or more diagnosed as bilateral PACS at HandanEye Hospital, China were randomly assigned to undergo LPI in one eye. Gonioscopy and Goldmann applanation tonometry were performed prior to, on day 7 and 12 months post LPI.

 
Results
 

80 of 134 patients (59.7%) could be followed up at one year. The mean IOP in the treated eyes was 15.9±2.7 mmHg at baseline, 15.4±3.0 mmHg on day 7; 16.5±2.9 mmHg at one month and 15.5±2.9 mmHg at 12 months; the IOP was very similar to the untreated eyes ( p>0.834). One or more quadrants of the angle opened in 93.7% of the LPI treated eyes but 67.0% (53/79) remained closed in two or more quadrants.

 
Conclusions
 

Following LPI the IOP was similar in treated and untreated eyes. Two thirds of the treated eyes continued to have non-visibility of the trabecular meshwork over 180 degrees. Further research is needed to determine the full implications of residual closure as well as the need for follow up and treatment in PACS.

 
 
Intraocular Pressure (IOP) Changes of Before and After Laser Periphearl Iridomoty in The Treated eye and Fellow Untreated Eye
 
Intraocular Pressure (IOP) Changes of Before and After Laser Periphearl Iridomoty in The Treated eye and Fellow Untreated Eye
 
 
Flow Chart of Participants in the Trial
 
Flow Chart of Participants in the Trial
 
Keywords: 571 iris • 419 anatomy • 461 clinical (human) or epidemiologic studies: natural history  
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