%0 Journal Article
%A Vinciguerra, Riccardo
%A Fernández-Vega Cueto, Luis
%A Poo López, Aranzazu
%A Eliasy, Ashkan
%A Merayo Lloves, Jesús Manuel
%A Elsheikh, Ahmed
%A Madrid Costa, David
%A Lisa Fernández, Carlos
%A Alfonso, José F.
%T The Effect of Intracorneal Ring Segments Implantation for Keratoconus on In Vivo Corneal Biomechanics Assessed With the Corvis ST
%D 2022
%@ 1081-597X
%U https://hdl.handle.net/20.500.14352/72880
%X PURPOSE:To evaluate the effect of the implantation of intracorneal ring segments (ICRS) in keratoconus on the dynamic corneal response (DCR) parameters obtained with the Corvis ST (Oculus Optikgeräte GmbH).METHODS:This prospective clinical study included patients who underwent ICRS implantation for keratoconus over a period of 1 year. On the day of the surgery and at least 1 month after ICRS implantation, the following measurements were made: corrected and uncorrected distance visual acuity, corneal tomography indices with the Pentacam (Oculus Optikgeräte GmbH), biomechanically corrected intraocular pressure (bIOP), Corvis ST DCR parameters, integrated inverse concave radius (1/R), deformation amplitude ratio (DA ratio), stiffness parameter at first applanation (SP-A1), stress–strain index (SSI), and highest concavity radius (HRC).RESULTS:Fifty-one eyes of 40 patients were included with a median follow-up time of 3 months (interquartile ratio [IQR]: 2 to 6 months). Statistical analysis showed that ICRS implantation did not affect corneal biomechanical measurements evaluated with the Corvis ST, which was demonstrated by non-significant changes in the SP-A1 (P = .637), 1/R (P = .647), HRC (P = .177), DA ratio (P = .735), and SSI (P = .501). Additionally, the results showed that bIOP measurements were not significantly affected by ICRS implantation (P = .113).CONCLUSIONS:ICRS implantation does not affect corneal biomechanical measurements in early follow-up.
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