Predicting the Lens Capsular Bag Size Using Pre-operative Biometry

Status Completed

Clinical Trial Summary

Aim of this study is to assess whether a high-resolution scan of the crystalline lens before surgery may be helpful in predicting post-operative capsule bag diameter.

Clinical Trial Description

Most of the measurement procedures used in this study are non-invasive and all are used in standard routine clinical practice, the benefit/risk ratio appears acceptable. However, a capsule tension ring will be used. A CTR is not used routinely, usually only in cataract operations in which the lens capsule is not stable enough - in other words, for stabilization. The insertion of the CTR is problem-free in most cases. In extremely rare cases, however, the lens capsule may be injured. And document complications will be collected, report them in a final paper. The CTR used in the study is a standard device and CE-marked device. Studies using CTR showed that it is beneficial in difficult cases. Gonioscopy after cataract surgery will be performed after 1 week. At this time point the wound is already sealed and there appears to be no increased risk to the patient. In the first study performed in a similar fashion in 1999 gonioscopy was performed one day after surgery. Aim of this study is to predict the diameter of the capsular bag using pre-operative optical biometry findings. This is a prospective, observer-blind and monocentric study that includes patients scheduled for cataract surgery. Recruitment will take part on the day of pre-assessment. For each patient only one eye will be included. In total 50 eyes of 50 patients will be included, of which at least 5 eyes with an axial eye length below 22.5mm and 5 eyes with an axial eye length above 25.0mm. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT05578339
Study type	Interventional
Source	Vienna Institute for Research in Ocular Surgery
Contact
Status	Completed
Phase	N/A
Start date	May 1, 2020
Completion date	December 20, 2021

View Details

See also
Status	Clinical Trial	Phase
Completed	`NCT04998409` - Evaluation of a Spherical Hydrophilic Acrylic Intraocular Lens
Completed	`NCT04252716` - VISPER: Randomised Comparison of Two OVDs in Cataract Surgery
Recruiting	`NCT05110222` - Cataract Lens Hardness Based on Phaco Tip Resistance
Recruiting	`NCT04266847` - Prospective Clinical Study of Preoperative and Postoperative Unilateral Mild Cataract Patients	N/A
Recruiting	`NCT04175951` - Tecnis Eyhance Versus Rayner RayOne Study	N/A
Recruiting	`NCT04572334` - Eyhance Autorefraction Study	N/A
Completed	`NCT04140383` - Cataract Surgery In Patients With Advanced Age
Active, not recruiting	`NCT04570579` - Impact of a Novel Extended Depth of Focus Intraocular Lens on Visual and Lifestyle Enhancement
Completed	`NCT05347615` - Achieving Hybrid Monovision By Paring Monofocal And EDOF Lens Technology
Completed	`NCT05129566` - Evaluation of Axial Stability of Two Models of Intraocular Lenses in Patients With an Eye Length More Than 26 mm	N/A
Recruiting	`NCT05148507` - Optimization of the Ocular Surface Prior to Cataract Surgery Using PROKERA	N/A
Completed	`NCT04655274` - Comparision of Visual Outcomes and Patient Satisfaction Between Two Diffractive Trifocal Intraocular Lenses
Completed	`NCT04255706` - Repeatability in Measurements of Two ssOCT and One OLCR Biometer	N/A
Completed	`NCT05287269` - Ocular Coherence Tomography During Cataract Assessment
Completed	`NCT04545671` - Evaluation of a Trifocal Lens
Completed	`NCT04580550` - Axial Length Variability	N/A
Recruiting	`NCT04265846` - Prospective Clinical Study of Different Intraocular Lens Implantation Designed for the Correction of Presbyopia
Not yet recruiting	`NCT06429527` - Vision Test App and Questionnaire for 1-Week Post-Cataract Surgery Follow-Up: A Multi-Center Randomized Controlled Trial	N/A
Completed	`NCT03970525` - Venturi and Peristaltic Based Phacoemulsification in Femtosecond Laser Cataract Surgery
Completed	`NCT04333056` - Comparison Between Two Ss-OCT Biometry