Ophthalmology
doi: 10.25005/2074-0581-2025-27-3-640-650
UTILIZING A 3D MODEL AS AN ALTERNATIVE TO TRYPAN BLUE STAINING FOR THE VISUALIZATION OF THE ANTERIOR LENS CAPSULE DURING CATARACT SURGERY
Department of Eye Diseases, Institute of Postgraduate Education, Samara State Medical University, Samara, Russian Federation
Objective: To assess the clinical efficacy and safety of a new technique for visualizing the anterior lens capsule (ALC) during the anterior capsulorhexis maneuver. This method utilizes a three-dimensional (3D) visualization system and does not require the use of the technically invasive trypan blue (TB) dye staining.
Methods: The study population was divided into two groups: the main group (MG) and the control group (CG). The MG consisted of 250 patients who underwent cataract surgery using a 3D visualization system. This system employs black-and-white filters and reduced color saturation to improve visibility during capsulorhexis. In contrast, in the CG, which also consisted of 250 patients, conventional microscope imaging with TB dye (0.05%) staining for ALC visualization was utilized.
Results: The patients in the MG and the CG exhibited a low rate of intraoperative and postoperative complications, with only 8 cases out of 500 eyes operated, resulting in a complication rate of 1.6%. There were no statistically significant differences between the MG and CG regarding best-corrected visual acuity (BCVA) and uncorrected visual acuity (UCVA) (p>0.05). The average surgical time was 10.2 minutes for the MG and 11.1 minutes for the CG (p>0.05). However, there was a statistically significant increase in the capsulorhexis time in the MG (p<0.05), as well as in the intraocular lens (IOL) implantation time in the CG (p<0.05). Additionally, significantly lower light intensity was used in the operating microscope for the MG, averaging 17.2%, compared to 47.9% for the CG (p<0.05). In the MG, there was a significantly lower incidence of the capsulorhexis radial tear at 0.8% of patients, compared to 4.0% in the CG (p<0.05). The peripheral runaway capsulorhexis was observed in 0.4% of patients in the MG, while it occurred in 1.6% of patients in the CG (p>0.05).
Conclusion: The visualization of the ALC using a 3D system and black-and-white filters is currently of interest for cataract surgery, serving as an alternative to the standard visualization method that employs TB dye.
Keywords: Ophthalmic surgery, three-dimensional visualization, cataract, capsulorhexis.
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Authors' information:
Zhuravlyov Anton Vladimirovich,
Postgraduate Student, Department of Eye Diseases, Institute of Postgraduate Education, Samara State Medical University
ORCID ID: 0000-0003-4536-8098
SPIN: 4507-8301
E-mail: zhuranton@inbox.ru
Stebnev Vadim Sergeevich,
Doctor of Medical Sciences, Professor of the Department of Eye Diseases, Institute of Postgraduate Education, Samara State Medical University
ORCID ID: 0000-0002-4539-7334
E-mail: vision63@yandex.ru
Information about support in the form of grants, equipment, medications
The authors did not receive financial support from manufacturers of medicines and medical equipment
Conflicts of interest: No conflict
Address for correspondence:
Zhuravlyov Anton Vladimirovich
Postgraduate Student, Department of Eye Diseases, Institute of Postgraduate Education, Samara State Medical University
443099, Russian Federation, Samara, Chapaevskaya str., 89
Tel.: +7 (987) 9129582
E-mail: zhuranton@inbox.ru
This work is licensed under a Creative Commons Attribution 4.0 International License.
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