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Pure ICL Implantation: A Novel Ophthalmic Viscosurgical Device-Free Method
Qin Qin1,2,3, Lianyun Bao1, Zifang He1
1Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, Jiangsu, China.
Journal of Ophthalmology
|October 18, 2021
Summary
The novel ophthalmic viscosurgical device-free (OVD-free) method for intraocular collamer lens (EVO-ICL) implantation offers faster visual recovery and shorter operation times. This OVD-free approach is safe and effective for myopic eyes, avoiding OVD-related complications.
Area of Science:
- Ophthalmology
- Surgical Innovation
- Refractive Surgery
Background:
- Traditional intraocular collamer lens (EVO-ICL) implantation often utilizes ophthalmic viscosurgical devices (OVDs).
- OVDs can be associated with complications such as increased intraocular pressure (IOP).
- Exploring OVD-free techniques is crucial for improving surgical safety and efficiency.
Purpose of the Study:
- To evaluate the clinical efficacy of a new OVD-free method for EVO-ICL implantation.
- To compare the outcomes of OVD-free (pure) EVO-ICL implantation with the traditional OVD-assisted method in myopic patients.
Main Methods:
- A comparative study involving 40 patients undergoing bilateral EVO-ICL implantation.
- One eye received traditional ICL implantation, while the fellow eye received OVD-free (pure) ICL implantation.
- Preoperative and postoperative outcomes including visual acuity, refractive error, IOP, visual quality, and corneal endothelial cell density were assessed.
Main Results:
- The OVD-free group showed significantly improved uncorrected and corrected distance visual acuity (UDVA, BCVA) and spherical equivalent (SE) 1 day post-surgery.
- No significant IOP elevation was observed in the OVD-free group, unlike the traditional group (P < 0.001).
- Operation time was significantly shorter in the OVD-free group (2.9 min vs. 4.4 min, P < 0.001), with no increase in complications.
Conclusions:
- The OVD-free EVO-ICL implantation method leads to faster visual recovery and reduced operation time.
- This technique offers more stable intraocular pressure post-surgery compared to the traditional method.
- Pure EVO-ICL implantation is a safe, convenient, and effective alternative, eliminating OVD-related risks.

