Related Experiment Video
Updated: May 9, 2026

Implantation Protocol of the Foldable Capsular Vitreous Body for Complex Vitreoretinal Surgery
Published on: April 14, 2026
Treatment of visual problems after intracorneal ring implantation
Aydin Yildirim1, Hasim Uslu, Necip Kara
1Fatih University, Department of Ophthalmology, Sema Research and Treatment Hospital, Istanbul, Turkey.
Purpose:
To report the effect of wavefront-guided photorefractive keratectomy and corneal collagen cross-linking (CXL) on visual problems after Ferrara ring segment placement.
Materials And Methods:
A 32-year-old male patient was treated with a Ferrara ring segment for keratoconus. One year later, the ring was removed due to severe glare complaints. After 6 months, wavefront-guided photorefractive keratectomy and CXL were applied simultaneously to correct high order aberration and refractive error.
Results:
Six months after the wavefront-guided photorefractive keratectomy and CXL, the uncorrected distance visual acuity was 20/25, and there was a 30% decrease in coma aberrations. The glare complaint regressed.
Conclusion:
Wavefront-guided surface ablation and CXL may reduce high order aberrations and glare complaints after intrastromal corneal ring implantation.
Related Concept Videos
Angle Closure Glaucoma: Treatment
Open Angle Glaucoma: Treatment
Drugs such as carbonic anhydrase inhibitors, α2- and...
