The present invention relates to an ophthalmic device configured to provide improved oxygen transmission, tear flow, and comfort, and more specifically, to an ophthalmic device which can supports a medium interposition. The ophthalmic device comprises a hydrogel lens, whereby surroundings of the hydrogel lens comprise a plurality of raised portions on the surface of the lens which is close to the surface of an eyeball.COPYRIGHT KIPO 2014산소 투과성이 개선된 안과용 장치가 제공된다. 안과용 장치는 하이드로겔 렌즈를 포함하고, 하이드로겔 렌즈의 주변 구역은 안구 표면에 근접한 렌즈의 표면에 복수의 융기부(raised portion)를 포함한다.