Collamer intraocular contact lens to correct high myopia

Area of Science:

• Ophthalmology
• Refractive Surgery

Background:

• High myopia presents significant visual challenges.
• Intraocular lenses offer a surgical option for refractive correction.

Purpose of the Study:

• To assess the feasibility of using posterior chamber intraocular contact lenses for myopia correction.
• Evaluate the safety and efficacy of these lenses in patients with high myopia.

Main Methods:

• 15 collagen copolymer phakic intraocular contact lenses were implanted in 14 patients.
• Preoperative spherical equivalents ranged from -10.8 to -24.0 diopters (average -15.3 D).
• Follow-up averaged 7 months.

Main Results:

• Mean postoperative spherical equivalent was -2.0 D.
• Visual acuity improved in most eyes; best spectacle-corrected acuity was maintained or improved in all but one.
• No iritis or cataracts observed; 4% mean endothelial cell loss at 6 months.
• One case of pupillary block required iridectomy.

Conclusions:

• The study suggests feasibility but requires longer follow-up for definitive conclusions on long-term safety.
• No progressive lens opacities were detected via Scheimpflug photography and ultrasound biomicroscopy.
• Potential for cataract formation due to lens contact warrants continued monitoring.