Related Experiment Video
Updated: Oct 10, 2025
09:00
Application of Straight-needle, Three-tailed, Knot-free, Peritoneal Sutures in Laparoscopic Transabdominal Preperitoneal Hernia Repair
Published on: November 12, 2021
2.1K
Comparison of Postoperative Hyphemas between Microhook Ab Interno Trabeculotomy and iStent Using a New Hyphema
Akiko Ishida1, Sho Ichioka1, Yuji Takayanagi1
1Department of Ophthalmology, Faculty of Medicine, Shimane University, Izumo 693-8501, Japan.
Journal of Clinical Medicine
|December 10, 2021
Summary
The Shimane University RLC postoperative hyphema scoring system (SU-RLC) effectively quantifies hyphema severity after glaucoma surgery. This system differentiates between minimally invasive glaucoma surgery (MIGS) procedures, aiding clinical assessment.
Area of Science:
- Ophthalmology
- Glaucoma Surgery
- Ocular Trauma
Background:
- Postoperative hyphema is a common complication following glaucoma surgery.
- Accurate quantification of hyphema severity is crucial for patient management and outcome assessment.
- Existing methods for hyphema assessment may lack the specificity needed for comparing different surgical techniques.
Purpose of the Study:
- To evaluate the clinical utility of the Shimane University RLC postoperative hyphema scoring system (SU-RLC) in quantifying hyphema severity.
- To compare hyphema severity between two different minimally invasive glaucoma surgery (MIGS) procedures using the SU-RLC.
- To identify factors associated with increased hyphema severity after MIGS.
Main Methods:
- Development and application of the SU-RLC, a scoring system based on red blood cells (RBCs), layer formation (L), and clot (C) observed via slit-lamp examination.
- Comparison of SU-RLC scores between patients undergoing Tanito microhook ab interno trabeculotomy and cataract extraction (TMH-CE) (n=64) and iStent-CE (n=21).
- Multivariate analyses to determine the association of surgical type, anticoagulant/antiplatelet use, myopia, and intraocular pressure with hyphema scores.
Main Results:
- The SU-RLC demonstrated significant differences in hyphema scores between TMH-CE and iStent-CE groups on postoperative days 1, 2, and 3.
- TMH-CE was associated with higher R, C, and RLC scores compared to iStent-CE.
- Anticoagulant/antiplatelet use and myopia were associated with increased hyphema severity in specific surgical groups.
Conclusions:
- The SU-RLC system successfully differentiated hyphema severity between different MIGS procedures.
- The SU-RLC scoring system appears feasible and clinically useful for evaluating hyphemas after glaucoma surgery.
- The findings highlight the SU-RLC's potential to guide clinical decisions and further research in glaucoma surgery outcomes.
