RT Journal Article
T1 Soft contact lens fitting after intrastromal corneal ring segment implantation to treat keratoconus
A1 Carballo Álvarez, Jesús
A1 Puell Marín, María Cinta
A1 Cuiña Sardiña, Ricardo
A1 Díaz Valle, David
A1 Vázquez Molini, José María
A1 Benítez Del Castillo Sánchez, José Manuel
AB PURPOSE: To assess the feasibility of fitting a lathed soft toric contact lens (STCL) after the implant of intrastromal corneal ring segments (ICRSs) to treat keratoconus.METHODS: Six months after ICRS implantation, 47 eyes of 47 patients (18-45 years) were fitted with a STCL. In each eye, we determined refractive error, uncorrected (UDVA) and corrected distance visual acuity (CDVA), and keratometry and asphericity measures. The outcome of STCL fitting was defined according to CDVA as successful (≤0.2logMAR) or unsuccessful (>0.2logMAR). Patients in the unsuccessful group were refitted with a piggy-back (PB) system. The above variables and the change in CDVA observed after STCL and PB lens fitting from spectacle CDVA were compared in the two groups.RESULTS: STCL fitting was successful in 75%, 66.66% and 0% of the ICRS implanted eyes with stages I-III keratoconus, respectively. Spectacle-CDVA was 1.5 lines better and mean corneal power was 3.62D lower in the successful STCL group. In this group, the difference in cylinder axis between spectacles and STCL was 24.25° lower. PB refitting achieved a PB-CDVA ≤0.2logMAR in all cases. A similar difference in the CDVA change achieved by contact lenses versus spectacles was observed in the successful STCL and PB refitted groups.CONCLUSION: STCL fitting is a feasible option in a large proportion of patients implanted with ICRS. When these lenses are unsatisfactory, a PB system is a good alternative.
PB Elsevier
SN 1367-0484
YR 2014
FD 2014-10
LK https://hdl.handle.net/20.500.14352/35392
UL https://hdl.handle.net/20.500.14352/35392
LA eng
NO Carballo Álvarez, J., Puell Marín, M. C., Cuiña Sardiña, R. et al. «Soft Contact Lens Fitting after Intrastromal Corneal Ring Segment Implantation to Treat Keratoconus». Contact Lens and Anterior Eye, vol. 37, n.o 5, octubre de 2014, pp. 377-81. DOI.org (Crossref), https://doi.org/10.1016/j.clae.2014.06.001.
NO Received 3 December 2013, Revised 1 June 2014, Accepted 4 June 2014, Available online 9 July 2014
DS Docta Complutense
RD 19 abr 2025