RT Journal Article
T1 The Effect of Intracorneal Ring Segments Implantation for Keratoconus on In Vivo Corneal Biomechanics Assessed With the Corvis ST
A1 Vinciguerra, Riccardo
A1 Fernández-Vega Cueto, Luis
A1 Poo López, Aranzazu
A1 Eliasy, Ashkan
A1 Merayo Lloves, Jesús Manuel
A1 Elsheikh, Ahmed
A1 Madrid Costa, David
A1 Lisa Fernández, Carlos
A1 Alfonso, José F.
AB 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.
PB Slack Incorporated
SN 1081-597X
YR 2022
FD 2022-04-01
LK https://hdl.handle.net/20.500.14352/72880
UL https://hdl.handle.net/20.500.14352/72880
LA eng
NO Received7/10/21; Accepted1/10/22
DS Docta Complutense
RD 19 abr 2025