A kind of eyedrops auxiliary aligner, one eyedrops bottle of cooperation use, which has a bottle neck. It includes an outline border, a reflecting mirror, a Fresnel Lenses and a fixing piece that eyedrops, which assists aligner,. Reflecting mirror is embedded what outline border, the reflecting layer including a transparent substrate and a setting what transparent substrate, and transparent substrate forms a first through hole worn for bottle neck. Fresnel Lenses is embedded the position that reflecting mirror is corresponded in what outline border, and forms the second through-hole that a corresponding first through hole position wears for bottle neck. What reflecting mirror is arranged in fixing piece, to fixed eyedrops bottle. By the cooperation of Fresnel Lenses and reflecting mirror, it is observed that the eye image of amplification when user's applying eye drops in eyes, and accuracy and convenience are promoted. In addition, may achieve the lightening of eyedrops auxiliary aligner using Fresnel Lenses.一種眼藥水輔助對準器,配合一眼藥水瓶使用,該眼藥水瓶具有一瓶嘴。眼藥水輔助對準器包含一外框、一反射鏡、一菲涅爾透鏡及一固定件。反射鏡嵌設於外框,包括一透明基板及一設置於透明基板的反射層,且透明基板形成一供瓶嘴穿設的第一通孔。菲涅爾透鏡嵌設於外框中對應反射鏡的位置,並形成一對應第一通孔位置以供瓶嘴穿設的第二通孔。固定件設置於反射鏡,用以固定眼藥水瓶。藉由菲涅爾透鏡與反射鏡的配合,使用者點眼藥水時能觀察到放大的眼部影像,而提升精確度及便利性。此外,使用菲涅爾透鏡可達成眼藥水輔助對準器的輕薄化。