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TitleClinical evaluation : Intrastromal Corneal Rings Segments and corneal ectasias
Abstract Nr.3013
PurposeTo report the visual and refractive results and safety outcomes of intrastromal corneal ring segment (ICRS) using mechanical implantation in patients diagnosed with keratoconus (KC) and pellucid marginal degeneration (PMD).
MethodsIn this retrospective uncontrolled study, 131 eyes of 108 patients diagnosed with corneal ectasias were treated with Keraring-Intrastromal corneal ring (Mediphacos, Brazil). All ICRS were implanted by a mechanical procedure between 2009 and 2017. Uncorrected visual acuity (UCVA), best spectacle-corrected visual acuity (BCVA), refractive data and complications were assessed with a median follow-up time of 12 month (range 1 to 79).
ResultsOverall, UCVA significantly improved from logMAR 0.97 ± 0.42 to 0.50 ± 0.36, and BCVA changed from 0.34 ± 0.18 to 0.16 ± 0.14. The postoperative follow up showed a statistically significant improvement in the refractive parameters compared with the preoperative data.
In this series we had no intraoperative complication, 1 eye developed infection 1 week after implantation and late extrusion of the ring segment was seen in 8 eyes.
ConclusionImplantation of ICRS is a safe and minimally invasive procedure leading to significant improvement in visual acuity (both UCVA and BCVA) in patients with ectatic disorders. Our results suggest its benefits are sustainable with time.
Conflict of interestNo
Details of conflicting interestsFinancial Disclosure: No author has a financial or proprietary interest in any material or method mentioned.
Authors 1
Last nameLENTINI
InitialsM
DepartmentCliniques universitaires Saint-Luc
CityBruxelles
Authors 2
Last namePINHEIRO CHAVES
InitialsA
DepartmentCliniques universitaires Saint-Luc
CityBruxelles
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