Key Surgical Steps for 4-Haptic Delivery Into the Posterior Chamber During Implantable Collamer Lens Surgery

Area of Science:

• Ophthalmology
• Surgical Techniques
• Intraocular Lenses

Background:

• Implantable Collamer Lens (ICL) implantation is a common refractive surgery.
• Optimizing surgical steps and reducing operative time are key goals.
• Understanding the impact of haptic placement on outcomes is crucial.

Purpose of the Study:

• To detail the surgical technique for 4-haptic placement in the posterior chamber during ICL implantation.
• To evaluate and compare postoperative outcomes based on the number of haptics placed in the posterior chamber.

Main Methods:

• Prospective observational study of 82 eyes undergoing ICL implantation.
• Eyes classified into 0-2, 3, or 4-haptic groups based on posterior chamber placement.
• Analysis of surgical time, OVD use, visual acuity, refractive outcomes, vault, IOP, corneal densitometry, and endothelial cell density (ECD).

Main Results:

• The 4-haptic and 3-haptic groups used significantly less OVD and had shorter operative times than the 0-2-haptic group.
• Visual acuity, refractive outcomes, vault, and IOP were comparable across all groups.
• Corneal densitometry was slightly higher in the 0-2-haptic group at 1 and 4 weeks; no significant difference in ECD at 3 months.

Conclusions:

• The 4-haptic ICL delivery technique is safe and effective.
• It offers comparable outcomes to the one-step OVD technique.
• This method reduces intraoperative OVD usage and operative time.