Two cases of persistent shallow anterior chamber after cataract surgery combined with goniosynechialysis

Yang, Kangyi; Chen, Xuan-Zhu; Wu, Huijuan

doi:10.18240/ijo.2023.02.21

Cited by 1 publication

(1 citation statement)

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“…When the pressure difference tends to balance because of posterior pulling from lens zonule and increased pressure in front of lens, the forward movement of the lens and iris stops. In our previous case reports, 23 we described two cases of PACG patients who had persistent shallow anterior chamber after phacoemulsification, intraocular lens implantation and goniosynechialysis. The anterior chamber depth gradually increased after surgical iridozonulohyaloidovitrectomy or YAG laser iridozonulohyaloidotomy, suggesting that partial ciliary block may play a role in the pathogenesis of PACG.…”

Section: Discussionmentioning

confidence: 97%

Direct observation and measurement of circumlental space and its relation to anterior chamber angle characteristics in iridotomized phakic eyes with primary angle closure disease

Liang,

Yang,

et al. 2024

Sci Rep

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Primary angle closure disease (PACD) is a major cause of blindness worldwide. It has a high prevalence in East Asia, especially in China, which leads to a higher incidence of blindness than open-angle glaucoma. The aim of this study was to directly observe the circumlental space (CLS) in laser peripheral iridotomized eyes with PACD and to determine whether this structure plays a role in the pathogenesis of PACD. Fifty eyes of 50 patients with PACD, who had received laser peripheral iridotomy performed with neodymium:yttrium–aluminum-garnet were recruited from glaucoma clinics from March 2021 to May 2022, including 17 primary angle closure suspect (PACS), 16 primary angle closure (PAC) and 17 primary angle closure glaucoma (PACG). They were classified into two groups based on whether the ciliary process and the crystalline lens equator were in contact using slit-lamp photograph: the attached group and the unattached group. The demographic, clinical characteristics and anterior segment parameters measured from ultrasound biomicroscopy were compared between the attached group and the unattached group. Thirty-three eyes were assigned to the attached group and 17 eyes belonged to the unattached group. In the unattached group, the mean CLS was 0.10 ± 0.07 mm. No significant differences were identified between the different diagnosis groups in age, sex, best-corrected visual acuity, intraocular pressure, white-to-white, axial length, central corneal thickness, anterior chamber depth, flat keratometry, steep keratometry or iridotomy diameter (p > 0.05). The unattached group had shorter trabecular-ciliary process distance (p = 0.021) and larger ciliary process area (p = 0.001) compared with the attached group. Small CLS and its potential effect (partial ciliary block) might be considered as one of the mechanisms of PACD.

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Section: Discussionmentioning

confidence: 97%