Multicomponent intraocular lens

Area of Science:

• Ophthalmology
• Biomedical Engineering
• Optical Science

Background:

• Current refractive surgery aims for accuracy comparable to non-surgical methods like glasses and contact lenses.
• Existing refractive procedures often fall short due to predictability issues, instability, and optical side effects.
• Conventional intraocular lens (IOL) surgery requires further refinement for optimal refractive outcomes.

Purpose of the Study:

• To introduce and evaluate the concept of a multicomponent intraocular lens (IOL).
• To develop an adjustable IOL that enhances the accuracy of refractive surgery.
• To improve upon conventional IOL technology for better refractive results.

Main Methods:

• Development of a multicomponent IOL with three optical elements: a base lens and two exchangeable elements (toric and spherical/multifocal caps).
• The design allows for optional secondary procedures to refine the refractive result.
• Prototype lenses fabricated from polymethylmethacrylate were assembled and disassembled.

Main Results:

• Demonstrated the feasibility of the multicomponent IOL concept through in vitro and in vivo (cat eye) assembly/disassembly.
• Prototype lenses successfully showcased the modular design.
• The concept allows for in-situ adjustment of optical properties.

Conclusions:

• The multicomponent IOL represents a significant advancement over conventional IOL technology.
• This innovative approach enables enhancement and fine-tuning of refractive accuracy post-implantation.
• The adjustable nature of the IOL promises improved outcomes in refractive surgery.