This invention the device in order to detect the indexed marking of the lens for ophthalmology automatically (100) being, in order to receive the aforementioned lens, the backing which is formed (110) with, on each side of the aforementioned backing, capturing the first lighting expedient in order to irradiate the lens for the aforementioned ophthalmology which is mounted on the aforementioned backing, and the aforementioned light which transmitted the aforementioned lens includes with the first capture in order to analyze/analysis expedient. The device by this invention, with first lighting expedient and the aforementioned backing, includes activated possibility and the inactivation possible pattern filter.本発明は、眼科用レンズの索引マーキングを自動的に検出するための装置(100)であって、前記レンズを受けるように構成された支持体(110)と、前記支持体の各側に、前記支持体上に載置された前記眼科用レンズを照射するための第一照射手段、および前記レンズを透過した前記光を捕捉して分析するための第一捕捉/分析手段とを含む。本発明による装置は、第一照射手段と前記支持体との間に、活性化可能および不活性化可能なパターン・フィルタを含む。