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مقاله
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Abstract
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Title:
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Low Iris and Anterior Chamber Volume is Associated with Deepening after Laser Peripheral Iridotomy in Primary Angle Closure Suspects
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Author(s):
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Mohammad Pakravan ,̽Hamed Esfandiari, Nassim Amouhashemi,Mehdi Yaseri, Pooya Torkian,Khosrow Jadidi,Azadeh Samaeili,Nils A Loewen2
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Presentation Type:
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Oral
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Subject:
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Glaucoma
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Others:
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Presenting Author:
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Name:
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Azadeh Samaeili
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Affiliation :(optional)
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E mail:
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as100973@yahoo.com
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Phone:
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Mobile:
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09173159125
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Purpose:
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To evaluate the association between baseline ocular variables and the widening of the anterior chamber angle by laser peripheral iridotomy (LPI) in primary angle closure suspects (PACS) using a new Fourier-domain swept-source anterior segment optical coherence tomography (FD-ASOCT).
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Methods:
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Sixty-six PACS eyes of 41 individuals were enrolled in this prospective interventional case series. An FD-ASOCT (Casia SS-1000 OCT; Tomey, Nagoya, Japan) was used to measure biometric baseline variables and at one month after the LPI. Paired t-test was used to compare the difference between pre-and post-LPI measurements. Multivariate regression analysis was used to test for an association between baseline iris thickness and volume, anterior chamber depth and volume, and lens vault with a widening of the angle after an LPI. Changes in trabecular iris space area and angle opening distance after the LPI were main outcome measures.
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Results:
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The mean age of participants was 58.6 ± 8.7 years, 68.2% of whom were female. The angle opening distance, recess area and trabecular iris surface area at 500 microns increased by 48% to 73% (all p<0.001). Lens vault and iris volume did not change. A low anterior chamber volume and low iris volume were associated with angle greater deepening by LPI.
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Conclusion:
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Eyes with a shallow anterior chamber and thinner irises are more likely to experience angle opening from an LPI.
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Attachment:
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