RT Journal Article
T1 The effect of soft contact lens thickness in visual function after intracorneal ring segments surgery
A1 Carracedo Rodríguez, Juan Gonzalo
A1 Canales Calvo, Javier
A1 González Balboa, Paula
A1 Recchioni, Alberto
A1 Carpena Torres, Carlos
A1 Carballo Álvarez, Jesús
AB Objective: To study the influence of soft contact lens (SCL) central thickness and material in keratoconus on visual function after intracorneal ring segment (ICRS) surgery.Methods: A pilot, experimental, prospective, cross-sectional and double-blind study was performed. Fourteen keratoconus patients with age range of 34.75 ± 9.22 years (7 males and 7 females) with ICRS implanted were involved in the study. Two different SCL materials [Hioxifilcon A (G-5X/p-GMA/HEMA) and Lucifilcon A (silicone-hydrogel)] with four different central thicknesses (0.1, 0.2, 0.3 and 0.4 mm) were fitted in one eye per patient, selected randomly. High and low corrected distance visual acuity (CDVA) and contrast sensitivity (CS), corneal topography and corneal and total aberrometry were measured.Results: Corneal spherical like, coma like and root mean square (RMS) decreased significantly for 0.3 and 0.4 mm in both SCL materials (p < 0.05). Total RMS decreased significantly for 0.4 mm with both SCL materials (p < 0.05). High and low CDVA improved for 0.4 mm of thickness for both materials (p < 0.05). Statistically increasing were found in all thicknesses studied for CS in both materials (p < 0.05).Conclusion: A central thickness of the SCL equal or superior to 0.4 mm seems to decrease the ocular high order aberration (HOA) and to improve the visual function in keratoconus patients implanted with ICRS. However, the modulus of rigidity of the SCL would not influence the HOA correction.
PB Elsevier
SN 1367-0484
YR 2017
FD 2017-10-06
LK https://hdl.handle.net/20.500.14352/18254
UL https://hdl.handle.net/20.500.14352/18254
LA eng
NO Received 15 April 2017, Revised 29 August 2017, Accepted 29 September 2017, Available online 6 October 2017.
NO Ministerio de Economía y Competitividad (MINECO)
NO Ministerio de Salud, Servicios Sociales e Igualdad de España
NO RETICS (Redes Temáticas de Investigación en Ciencias de la Salud) (España)
DS Docta Complutense
RD 2 may 2024