TY - JOUR
T1 - Evaluation of corneal optical properties in subjects wearing hydrogel etafilcon a contact lenses and the effect of administering mannitol-enriched sodium hyaluronate ophthalmic solution
AU - Lombardo, Marco
AU - Rosati, Marianna
AU - Pileri, Marco
AU - Schiano-Lomoriello, Domenico
AU - Serrao, Sebastiano
PY - 2014/11/21
Y1 - 2014/11/21
N2 - Background: The purpose of this study was to evaluate the effect of daily administration of mannitol-enriched sodium hyaluronate ophthalmic solution on the corneal optical properties of subjects wearing low Dk hydrogel (etafilcon A) contact lenses (CLs).Methods: Forty-five subjects wearing etafilcon A CLs daily for more than 6 months were recruited into this pilot study. Fifteen of the subjects administered a 10% mannitol-enriched 0.05% sodium hyaluronate solution (study group) once daily and 30 subjects did not administer any ophthalmic solution (control group). The subjects were examined at baseline and one month after recruitment. Changes in central corneal thickness (CCT) and corneal light backscatter were evaluated by Scheimpflug imaging (Pentacam HR). Changes in corneal total high-order aberration, corneal spherical aberration, coma, and trefoil were evaluated using the OPD scan II.Results: At one month, corneal light backscatter decreased significantly in the study group (#18.30 arbitrary units; P,0.05) and this was highly correlated with a decrease in CCT (R=0.81; P=0.04). The decrease in corneal total high-order aberration, spherical aberration, and coma was significantly higher in the study group than in the control group (P,0.05). No changes in corneal light backscatter or CCT were found in the control group during follow-up.Conclusion: Once-daily administration of a mannitol-enriched lubricant ophthalmic solution was effective for improving the corneal optical quality and reducing corneal swelling in subjects wearing low Dk hydrogel (etafilcon A) CLs during one month follow-up.
AB - Background: The purpose of this study was to evaluate the effect of daily administration of mannitol-enriched sodium hyaluronate ophthalmic solution on the corneal optical properties of subjects wearing low Dk hydrogel (etafilcon A) contact lenses (CLs).Methods: Forty-five subjects wearing etafilcon A CLs daily for more than 6 months were recruited into this pilot study. Fifteen of the subjects administered a 10% mannitol-enriched 0.05% sodium hyaluronate solution (study group) once daily and 30 subjects did not administer any ophthalmic solution (control group). The subjects were examined at baseline and one month after recruitment. Changes in central corneal thickness (CCT) and corneal light backscatter were evaluated by Scheimpflug imaging (Pentacam HR). Changes in corneal total high-order aberration, corneal spherical aberration, coma, and trefoil were evaluated using the OPD scan II.Results: At one month, corneal light backscatter decreased significantly in the study group (#18.30 arbitrary units; P,0.05) and this was highly correlated with a decrease in CCT (R=0.81; P=0.04). The decrease in corneal total high-order aberration, spherical aberration, and coma was significantly higher in the study group than in the control group (P,0.05). No changes in corneal light backscatter or CCT were found in the control group during follow-up.Conclusion: Once-daily administration of a mannitol-enriched lubricant ophthalmic solution was effective for improving the corneal optical quality and reducing corneal swelling in subjects wearing low Dk hydrogel (etafilcon A) CLs during one month follow-up.
KW - Contact lens
KW - Corneal backscattering
KW - Corneal high-order aberrations
KW - Corneal optical quality
KW - Hypertonic lubricant solution
KW - Scheimpflug imaging
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U2 - 10.2147/OPTH.S71944
DO - 10.2147/OPTH.S71944
M3 - Article
AN - SCOPUS:84911916070
VL - 8
SP - 2347
EP - 2354
JO - Clinical Ophthalmology
JF - Clinical Ophthalmology
SN - 1177-5467
ER -