Changes in Japanese eyes after laser peripheral iridotomy: an anterior segment optical coherence tomography study

Ang, Bryan Chin Hou; Nongpiur, Monisha E.; Aung, Tin; Mizoguchi, Takanori; Ozaki, Mineo

doi:10.1111/ceo.12673

Cited by 28 publications

(20 citation statements)

References 36 publications

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“…demonstrated that in Japanese eyes, with angle closure there was an increase in anterior chamber dimensions, angle widening, decrease in iris curvature and a constant LV, iris thickness and iris area after LPI. The findings are consistent with the described mechanism of LPI in relieving pupillary block . An unsuccessful LPI outcome (two or more quadrants closed after LPI) or less AOD750 change was associated with pre‐laser greater angle closure, less anterior iris bowing in light conditionsand thick peripheral iris at baseline .…”

Section: Published Resultssupporting

confidence: 82%

Role of anterior segment optical coherence tomography in angle‐closure disease: a review

Porporato

Baskaran

Aung

2017

Clinical Exper Ophthalmology

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This article aims to review the published literature pertaining to the use of anterior segment optical coherence tomography (AS-OCT) in the evaluation of angle-closure disease. Searches on the available published literature were last conducted on 15 June 2017. Rated as Level I evidence, we found that AS-OCT has shown good sensitivity and moderate diagnostic accuracy to detect narrow angles when compared with gonioscopy. AS-OCT quantitative and qualitative parameters demonstrated strong association with the presence of gonioscopically closed angles. This technology provides an objective non-contact method of assessing the angle that is well tolerated by the patient and correlates well with the information provided by gonioscopy.

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Section: Published Resultssupporting

confidence: 82%

Role of anterior segment optical coherence tomography in angle‐closure disease: a review

Porporato

Baskaran

Aung

2017

Clinical Exper Ophthalmology

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“…Laser peripheral iridotomy (LPI) may be able to open an appositionally closed angle and results in reduction of IOP. [1][2][3][4] However, it may not be effective in opening angles with PAS closure. Laser peripheral iridotomy is in general minimally invasive.…”

Section: Laser Peripheral Iridotomymentioning

confidence: 99%

Management of Primary Angle-Closure Glaucoma

Lai,

Choy,

Shum

2016

Asia-Pacific Journal of Ophthalmology

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Primary angle-closure glaucoma (PACG) is a progressive optic nerve degeneration and is defined as a glaucomatous optic neuropathy with associated characteristic enlargement of optic disc cupping and visual field loss that is secondary to ocular hypertension caused by closure of the drainage angle. Angle closure is caused by appositional approximation or adhesion between the iris and the trabecular meshwork. The main treatment strategy for PACG lies in the reduction of intraocular pressure, reopening of the closed angle, and possible prevention of further angle closure. There is no universally agreed best surgical treatment for PACG. Trabeculectomy, goniosynechialysis (GSL), glaucoma implant, and cyclodestructive procedures are effective surgical options. Each of them plays an important role in the management of PACG with its own pros and cons. Accumulating evidence is available to show the effectiveness of visually significant and visually nonsignificant cataract extraction in the treatment of PACG. Trabeculectomy and GSL are often combined with cataract extraction, which may offer additional pressure control benefits to patients with PACG. This review article will discuss laser peripheral iridotomy, argon laser peripheral iridoplasty, and surgeries such as GSL, phacoemulsification, and phaco plus glaucoma surgeries that lower intraocular pressure and also alter the anterior segment and/or drainage angle anatomy. Currently, glaucoma implants and cyclodestruction are mainly reserved for PACG patients who have failed previous filtering operations. Their role as initial surgical treatment for PACG will not be discussed.

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“…We do not know – and would be keen to learn – if there is a value for AOD, TISA, ARA etc which we may regard as ‘safe’, and which might therefore be predictive for no/low risk of angle closure disease. Similarly, in other populations, lens vault is significantly associated with angle closure risk: what is the relevance to the ongoing risk of angle closure in this ethnic group of no change after laser in lens vault? It would be interesting to study the contribution of dynamic iris changes in this ethnic population too.…”

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confidence: 99%

“…Similarly, in other populations, lens vault is significantly associated with angle closure risk: what is the relevance to the ongoing risk of angle closure in this ethnic group of no change after laser in lens vault? 1,8 It would be interesting to study the contribution of dynamic iris changes in this ethnic population too.…”

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confidence: 99%

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Has the iridotomy 'worked'?: what the anterior segment OCT tells us

Walland

Thomas

2016

Clinical Exper Ophthalmology

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Changes in Japanese eyes after laser peripheral iridotomy: an anterior segment optical coherence tomography study

Abstract: Background: The aim was to investigate the changes in anterior segment parameters, as assessed by anterior segment optical coherence tomography in Japanese subjects after laser peripheral iridotomy (LPI).

Cited by 28 publications

References 36 publications

Role of anterior segment optical coherence tomography in angle‐closure disease: a review

Role of anterior segment optical coherence tomography in angle‐closure disease: a review

Management of Primary Angle-Closure Glaucoma

Has the iridotomy 'worked'?: what the anterior segment OCT tells us

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