Patent ID: 8518109
Filing Date: 2013-08-27
Classification: A61B,A61K

Abstract:
1. A method comprising: dispensing an optically transmissive gel, having a maintainable shape that conforms to the surface of a lens being part of an ophthalmic examination instrument, to the surface of the lens without the formation of significant air bubbles that would decrease the transmission of light through the optically transmissive gel, with the optically transmissive gel having a concentration of sodium carboxy methylcellulose (SCMC) of between about 4% and 6% in distilled water; positioning the lens close enough to the surface of an eye under examination so that the optically transmissive gel bridges the gap between the lens and the surface of the eye under examination; and adjusting the object distance between the lens and the surface of the eye within the range of from about 1 mm to about 7 mm while performing anterior chamber angle imaging of the eye under examination and optical coupling is maintained between the lens and the surface of the eye under examination by the optically transmissive gel to facilitate acquiring good images of the anterior chamber of the eye under examination; where the viscosity level of the optically transmissive gel allows the optically transmissive gel to be dispensed without formation of significant light-scattering air bubbles and to remain on the lens during positioning, to maintain a defined shape with minimal breakdown or change during use and to be easily removed from the surface of the eye after use.