[Intraocular phakic lens ZSAL-4 for high myopia correction]

Area of Science:

• Ophthalmology
• Refractive Surgery
• Intraocular Lenses

Context:

• High myopia presents significant challenges for vision correction.
• Phakic intraocular lenses (IOLs) offer a surgical alternative for refractive errors.
• The ZSAL-4 IOL is a specific model evaluated for its performance.

Purpose:

• To assess the effectiveness, safety, and predictability of the ZSAL-4 phakic IOL for correcting high myopia.
• To analyze visual acuity, refractive outcomes, and ocular health parameters post-implantation.
• To determine the potential benefits of adjunctive LASIK for residual refractive errors.

Summary:

• Retrospective study of 28 ZSAL-4 IOLs in 19 patients with high myopia.
• Significant reduction in spherical equivalent (SE) from -14.91D to -1.29D at 6 months.
• High efficacy and safety indices observed, with minimal BCVA loss and acceptable endothelial cell changes.
• Complications included transient IOP elevation, pupil ovalization, IOL rotation, and one retinal detachment; 3 eyes required LASIK for residual refractive error.

Impact:

• ZSAL-4 IOL implantation demonstrates effectiveness and safety in correcting high myopia.
• The procedure shows acceptable predictability, with potential for enhancement using LASIK.
• Findings contribute to understanding IOL options for severe refractive errors.