Description Module
The Description Module contains narrative descriptions of the clinical trial, including a brief summary and detailed description. These descriptions provide important information about the study's purpose, methodology, and key details in language accessible to both researchers and the general public.
Description Module path is as follows:
Study -> Protocol Section -> Description Module
Description Module
Ignite Creation Date:
2026-03-26 @ 3:17 PM
Ignite Modification Date:
2026-03-26 @ 3:17 PM
NCT ID:
NCT07321769
Brief Summary:
In patients with complex cataracts, spatial abnormalities in the lens and its surrounding tissues-including both the anterior and posterior ocular segments-are often present. Due to the lack of precise preoperative assessment tools and standardized surgical protocols, these cases are associated with increased surgical complexity and difficulty, often leading to suboptimal visual outcomes. Therefore, this study explores a three-dimensional reconstruction method for the anterior segment based on swept-source optical coherence tomography (SS-OCT). By integrating imaging data from CT, B-scan ultrasound, and ultrasound biomicroscopy (UBM), a full three-dimensional model of the eye is constructed to enable objective and quantitative evaluation of its entire structure. This approach aims to provide valuable reference for surgical planning and prognostic assessment in lens diseases accompanied by ocular spatial structural abnormalities.
Detailed Description:
In patients with complex cataracts, lens opacities are often accompanied by spatial structural disorders or abnormalities involving both the lens itself and its surrounding tissues, including the anterior and posterior ocular segments. Due to the lack of precise preoperative assessment tools and standardized surgical protocols, these cases present higher surgical complexity and technical difficulty, often resulting in suboptimal outcomes. Therefore, preoperative objective quantitative analysis of the three-dimensional morphology and spatial relationships of the anterior segment, posterior segment, and the entire globe is crucial for surgical planning, prevention of complications, and postoperative visual recovery.
This study employs a retrospective research design. Using multimodal imaging systems-including anterior segment swept-source optical coherence tomography (SS-OCT), CT, B-scan ultrasound, and ultrasound biomicroscopy (UBM)-we aim to explore methods for full-eye three-dimensional reconstruction. The goal is to construct a comprehensive 3D ocular model that includes the cornea, anterior chamber, iris, angle, lens, vitreous cavity, retina, and related fundus structures.
This model will be used to comprehensively analyze morphological and spatial alterations in lens diseases associated with ocular spatial abnormalities, providing an objective quantitative description. Furthermore, the study will validate the effectiveness of this full 3D ocular model in clinical diagnosis, surgical planning, and prognosis assessment for this broad category of conditions. Ultimately, it seeks to establish objective, quantitative reference standards for the precise diagnosis and treatment of lens diseases complicated by ocular spatial structural disorders.
Study:
NCT07321769
Study Brief:
Protocol Section:
NCT07321769