The ocular surface consists of the moist mucosal organs at the anterior eye surface. they're endless anatomical unit from the lachrymal gland over conjunctiva & cornea into the lacrimal system . Joined by the flow of tears and governed by regulatory systems, e.g. nerves, hormones & system ‐ thus they also form a functional unit as a continuing moist chamber (for details please see: WWW .OSCB ‐BERLIN .ORG ). the most function is to supply the environment for vision by the doorway of sunshine and its refraction.