The utility model relates to an eyedrop auxiliary device which can be adjusted arbitrarily.Including a joint section,One expansion section and one joint section,The connecting section has a connecting hole with an outer diameter smaller than that of the eyedrop bottle body.The combination hole is used for covering the body of the eyedrop bottle.The expansion section is formed at one end of the joint section.And the joint section is formed at one end of the joint section,The outer diameter of the joint section is larger than the joint section,And a circular fitting edge is formed at the edge of the other end of the fitting segment relative to the expansion segment to fit around the human eye.By way ofThe joint section,The expansion section and the binding section are made of flexible materials.And in the joint section,The expansion section and the fitting section are internally provided with a cavity which is connected with the binding hole.It is applied around the eyes of human body through the binding edge.The chamber is formed into a completely closed space.The user only needs to press the joint section gently.Any part of the expansion section or the periphery of the joint section,Change the pressure in the chamber.Further, the eye drops are drawn out of the bottle due to pressure.To achieve the effect of using vacuum principle to draw out eye drops.一種可任意調整之眼藥水輔助器，包括有一結合段、一伸縮段與一貼合段，該結合段具有一外徑小於眼藥水瓶身的結合孔，該結合孔用於套置於眼藥水瓶身，該伸縮段係漸擴的形成於該結合段一端，而該貼合段係形成於該結合段一端，該貼合段的外徑大於該結合段，且該貼合段位在相對於該伸縮段的另一端邊緣形成有一圓弧狀的貼合邊以俾服貼於人體眼部周圍，藉之，該結合段、該伸縮段與該貼合段係以撓性材質一體成型而製成，且在該結合段、該伸縮段與該貼合段內部具有一與該結合孔相貫通的腔室，透過該貼合邊服貼於人體眼部周圍，使得該腔室形成為完全密閉的空間，而使用者僅需輕壓該結合段、該伸縮段或該貼合段外圍的任一處，令該腔室的壓力產生變化，進一步的使得眼藥水由瓶身內受壓力影響而被汲出，達到運用真空原理來汲出眼藥水之功效。
