A Toric Plate-Haptic Intraocular Lens Suitable for Flanged Scleral Fixation.

Area of Science:

• Ophthalmology
• Surgical Innovation
• Intraocular Lenses

Background:

• Eyes lacking capsular support present unique challenges for intraocular lens (IOL) implantation.
• Maintaining stable and accurate IOL position is crucial for visual outcomes, especially with toric IOLs.

Purpose of the Study:

• To evaluate the clinical experience with a modified toric plate-haptic intraocular lens (VisTor) designed for four-point scleral fixation.
• To assess the efficacy and safety of this technique in eyes with compromised capsular support.

Main Methods:

• A modified VisTor lens with added haptic positioning holes was used for four-point scleral fixation.
• Sutures were passed through the sclera and the IOL haptics, creating four fixation points.
• Preoperative marking of the lens axis and suture insertion points ensured accurate alignment.

Main Results:

• Fifteen eyes without capsular support received the modified toric IOL.
• The IOL was positioned within 4 degrees of the planned axis in all cases.
• No postoperative tilt was observed, and satisfactory visual improvement was achieved in most patients.

Conclusions:

• Four-point scleral fixation of a plate-haptic IOL offers precise and stable positioning in eyes lacking capsular support.
• This technique allows for accurate toric correction, leading to improved visual outcomes.
• The modified lens design facilitates secure fixation, addressing a critical need in complex cataract surgery.