Resumen de Quantitative central corneal anatomy and anaesthetic eye drops effects: comparison between 0.4% oxybuprocaine and a combination of 0.1% tetracaine and 0.4% oxybuprocaine.
Isabel Asensio Romero, José María Palanca Sanfrancisco, Juan Alberto Sanchis Gimeno, Manuel Granell Gil, L. Alonso, M.S. Rahhal, Francisco Martínez Soriano
We aimed to analyse the changes in central corneal thickness values following the instillation of 0.4% oxybuprocaine eye drops and following a combination of 0.1% tetracaine and 0.4% oxybuprocaine eye drops. Orbscan pachymetry (Orbscan II Corneal Topography System; Orbscan, Inc., Salt Lake City, UT, USA) was carried out before and three minutes after the instillation of 0.4% oxybuprocaine eye drops, and before and three minutes after the instillation of a combination of 0.1% tetracaine and 0.4% oxybuprocaine eye drops in 35 healthy subjects (n=35; aged 20-30 years). After the instillation of 0.4% oxybuprocaine eye drops there was a mean increase in central corneal thickness of 25±11 microns. After the combination of 0.1% tetracaine and 0.4% oxybuprocaine eye drops it rose to 48±20 microns. The combination of 0.1% tetracaine and 0.4% oxybuprocaine anaesthetic eye drops causes higher increases in central corneal thickness values than 0.4% oxybuprocaine eye drops.
