ICL and LASIK for Hyperopic Astigmatism

Spherical Implantable Collamer Lens With Postoperative Adjunctive LASIK in the Treatment of High Compound Hyperopic Astigmatism

This study investigates a two-step treatment for people with severe farsightedness combined with astigmatism. The first step involves implanting a specially designed lens inside the eye (a spherical Implantable Collamer Lens, or ICL) to improve vision. Later, a laser procedure (LASIK) is performed to fine-tune the results for even better clarity.

To assess refractive and visual outcomes of a spherical Implantable Collamer Lens (ICL) followed by planned postoperative adjunctive laser-assisted in situ keratomileusis (LASIK) in the treatment of high compound hyperopic astigmatism. In this prospective, multi-center, multi-surgeon, single-arm study, eyes with ≥3.50 D hyperopia and ≥2.00 D of astigmatism underwent surgery receiving a spherical Implantable Collamer Lens (ICL) followed by a planned adjunctive LASIK postoperatively. Outcomes measures included postoperative uncorrected (UDVA) and corrected distance visual acuity (CDVA), manifest refraction, spherical (SEQ) and defocus equivalent (DEQ), efficacy index, safety index, and astigmatism vector analyses.

Inclusion Criteria:

• Preoperative hyperopic sphere of ≥+3.50 D
• Astigmatism of ≥+2.00 D
• Stable refraction for the previous 12 months
• Age older or equal to 18 years
• Anterior chamber depth (ACD) from corneal endothelium to anterior lens capsule of 3.0 mm or greater

Exclusion Criteria:

• Age younger than 18 years
• Patients lost to follow-up
• Cataract formation
• History of glaucoma or retinal detachment
• Macular degeneration
• Diabetic retinopathy
• History of ocular inflammation
• Signifcant irregular corneal topography
• Evidence of inconsistent imaging from dry eyes