Modified Carlevale Intraocular Lens Fixation Technique: Two Vitrectomy Ports As Lens Plug Fixation Sites

Area of Science:

• Ophthalmology
• Surgical Techniques
• Intraocular Lens Implantation

Background:

• Intraocular lens (IOL) subluxation, luxation, and dislocation are common challenges in ophthalmic surgery.
• Aphakia can result from various ocular conditions, necessitating IOL implantation.
• Existing IOL fixation methods may involve multiple scleral wounds and potential complications.

Purpose of the Study:

• To describe and evaluate the effectiveness of a modified Carlevale intraocular lens (IOL) fixation technique.
• To assess the use of two vitrectomy ports as novel fixation sites for the IOL.

Main Methods:

• A prospective, consecutive, interventional study involving 60 eyes of 60 patients.
• Patients underwent 25- or 23-gauge vitrectomy for IOL subluxation/luxation, lens dislocation, or aphakia.
• Carlevale IOL implantation was performed using the modified fixation technique.

Main Results:

• A mean refractive prediction error of -0.27 ± 0.78 diopters was recorded.
• Transient ocular hypotension occurred in four eyes postoperatively.
• No major complications, including retinal detachment, endophthalmitis, or IOL dislocation, were observed within the 4-month follow-up period.

Conclusions:

• The modified Carlevale IOL fixation technique appears to be simple, fast, and effective.
• Utilizing vitrectomy ports as fixation sites may reduce the number of scleral wounds.
• The technique shows promise for fewer postoperative complications in IOL fixation procedures.