Evaluation of Multimodal Biometric Parameters for Diagnosing Acute Angle Closure Secondary to Lens Subluxation

Abstract

Introduction: To evaluate the clinical characteristics and multimodal biometric parameters from ultrasound biomicroscopy (UBM) and IOL Master biometry of patients with acute secondary angle-closure due to lens subluxation (ASAC-LS), acute primary angle-closure (APAC), and cataract. Methods: This retrospective study included 22 eyes with ASAC-LS, 27 eyes with APAC, and 39 eyes with cataract. Gender, age, affected eye, best corrected visual acuity, axial length, central corneal thickness, and anterior chamber depth (ACD) assessed by UBM and IOL Master were measured and compared between the three groups. In addition, we compared the ratio of ACD (ACD ratio) and the difference of ACD (ACD difference) measured by the two instruments. Logistic regression analysis was

Ocular Biometric Characteristics in Preoperative Diagnosis of Acute Angle Closure With and Without Zonular Laxity

“…Exclusion criteria were: (1) history of AAC attack or primary angle closure glaucoma in either eye; (2) lens subluxation due to zonular dehiscence detected preoperatively by ultrasound biomicroscopy (UBM) scan or during surgery (lens subluxation due to zonular dehiscence was defined as the invisibility of zonule in some quadrants by UBM, or rupture of the zonule and the displacement of lens equator in some quadrants in the operative setting) 16 ; (3) history of ocular surgeries, including peripheral iridotomy or iridoplasty, or trauma; (4) AAC owing to other ocular diseases such as pseudoexfoliation syndrome, retinitis pigmentosa, Marfan syndrome, homocystinuria, Weill-Marchesani syndrome, and so on; (5) inability to tolerate UBM examination.…”