Chapter 3: Gonioscopy and Other Techniques for Assessing the Anterior Segment

Yang Jing, Wang Hao, Bai Yanhui et al.

Tan Siyi, Li Dongjun, Liu Dianfeng et al.

AS-OCT showed Berger's space is more visible in acute angle closure and younger eyes, indicating its potential role in understanding PACD mechanisms and risk factors.

Dhiman Shweta, Sinha Nidhi, Behera Madhusmita

Zhang Chun, Xu Zhuping

Novel ultrasound modalities and AI enhance ophthalmic diagnosis by improving resolution, tissue characterization, and blood flow assessment, offering new tools for glaucoma and other ocular diseases.

Orenc Pinar, Kuçukbezirci Guldeniz Usta, Gungel Hulya

This study found combined phacoemulsification and HFDS successfully lowered IOP. Postoperative AS-OCT showed angle widening, with 750-µm posterior angle measurements potentially indicating surgical success, aiding long-term glaucoma follow-up.

M Priyanga, Rajamani Muralidhar, Grover Davinder S et al.

This study found globe rotation with a direct goniolens for ab interno bleb revision successfully accessed the superior angle, significantly lowering IOP and medication use, offering a practical alternative for glaucoma surgery.

Li Jiaying, Zhang Ye, Cheng Zhen et al.

This study found that specific AS-OCT angle parameters, particularly those closer to the scleral spur, are better screening indicators for progressive primary angle closure glaucoma than for non-progressive angle closure disease, guiding targeted screening.

Namba Michie, Xu Benjamin Y

AS-OCT with AI objectively diagnoses and risk-stratifies angle closure more accurately than traditional methods, improving personalized care and predicting treatment outcomes for glaucoma patients.

Wang Xinyu, Wang Yunxiao, Xue Shasha et al.

LPI shifts the lens posteriorly and improves its stability in PACD, especially in PACG, which may impact IOL power calculations.

Servillo Andrea, Tun Tin A, Yoo Chungkwon et al.

This study found laser iridotomy sustained angle widening in two-thirds of patients. Persistent angle closure, seen in 33%, was predicted by a thicker iris and younger age, guiding personalized treatment.

Win Khin Yadanar, Ng Yvonne Bei Zhen, Hu Qinglan et al.

UHR-OCT precisely characterized exfoliation syndrome material on the lens, revealing diverse forms and enabling quantitative analysis. This offers a new tool for monitoring disease progression.

Lin Jingjing, Mao Jianbo, He Meihui et al.

AS-OCTA-guided LPI for angle-closure suspects significantly reduced bleeding and inflammation compared to slit lamp guidance, improving safety and clinical outcomes by selecting less vascularized iris sites.

Cheng Huanmin, Li Qiwei, Yang Fan et al.

Corneal diameter significantly impacts biomechanical and biometry measurements; smaller corneas show abnormal Pentacam/Corvis ST values, suggesting CD inclusion improves refractive surgery screening for ectasia risk.

Zheng Xuanli, Zhao Fengping, Chen Huan et al.

This rabbit study shows ciliary block-induced trans-lens pressure difference drives anterior chamber shallowing, angle closure, and high IOP, providing a valuable model to understand human angle-closure glaucoma.

Lang Tracy Z, Xu Benjamin Y, Li Zhiwei et al.

This study found acute angle closure after dilation is extremely rare (0.002%) in a large teleretinal screening program, supporting dilation's safety and questioning its contraindication in this setting.

Ventura-Abreu Néstor, Molins Blanca, Guerra-Meniconi José et al.

This study found successful XEN45 blebs correlate with higher preoperative goblet cell density and mucin, and AS-OCT best monitors postoperative bleb function for clinical management.

Schipper Pascal, Bourauel Leonie, Weinhold Leonie et al.

AS-OCT revealed fascia lata patch grafts used in PAUL glaucoma implant surgery maintained thickness better and had less tube exposure than pericardium, suggesting superior long-term protection.

Koçer Ali Mert

This study found LPI characteristics (size, distance from pupil) influence anterior segment changes. A smaller LPI relative to pupil size or LPI placed too peripherally may reduce treatment efficacy, guiding optimal LPI placement.

Dada Tanuj, Beri Nitika, Patil Anuja et al.

Aqueous angiography showed trabecular MIGS increased aqueous outflow in a PACG patient, supporting its use for angle closure glaucoma treatment.