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Intracorneal continuous ring implantation for keratoconus: One-year follow-up
Albert Daxer1, Haifa Mahmoud, Rengaswamy Srinivasan Venkateswaran
1Eye Center, Linz-Ybbs, Austria. daxer@gutsehen.at
Journal of Cataract and Refractive Surgery
|July 27, 2010
Summary
Intracorneal continuous ring (ICCR) implantation significantly improved vision in keratoconus patients. This treatment enhanced visual acuity and reduced refractive errors, offering a promising option for managing this corneal condition.
Area of Science:
- Ophthalmology
- Corneal Surgery
Background:
- Keratoconus is a progressive eye condition characterized by thinning and bulging of the cornea.
- Current treatments aim to correct vision and slow disease progression.
Purpose of the Study:
- To evaluate the efficacy of intracorneal continuous ring (ICCR) implantation for treating keratoconus.
- To assess visual function outcomes and complications associated with ICCR implantation.
Main Methods:
- A study involving 15 eyes with keratoconus who underwent MyoRing ICCR implantation.
- Outcome measures included uncorrected and corrected distance visual acuity, refraction, and complications.
- Postoperative follow-up was conducted for up to one year.
Main Results:
- Significant improvements were observed in uncorrected distance visual acuity (UDVA) and corrected distance visual acuity (CDVA).
- Mean keratometry (K) readings decreased, indicating a reduction in corneal steepness.
- Patients experienced improvements in manifest refractive errors and spherical equivalent, with no serious intraoperative complications.
Conclusions:
- ICCR implantation is an effective treatment for keratoconus, significantly enhancing visual function.
- The study demonstrated improved UDVA and CDVA during the first postoperative year.
- Further refinement of the nomogram for disease grading based solely on K readings is suggested.