<prompt> Translate the following text to EnglishSisler 1996 alianzisha kipimo cha uwazi bila kitengo kulingana na kiwango cha kunyonya mwanga kilichopimwa kinachoitwa deciview.  <response>: More recently, Sisler 1996 created a unitless measure of visibility based directly on the degree of measured light absorption called the deciview. 