由于(yu)(yu)隱(yin)形眼(yan)(yan)鏡(jing)(jing)(jing)直(zhi)接貼附在(zai)(zai)(zai)眼(yan)(yan)角(jiao)膜的表(biao)面，所(suo)以(yi)佩戴(dai)者在(zai)(zai)(zai)選(xuan)(xuan)擇(ze)隱(yin)形眼(yan)(yan)鏡(jing)(jing)(jing)特別(bie)注(zhu)重(zhong)的是(shi)鏡(jing)(jing)(jing)片材(cai)質的選(xuan)(xuan)擇(ze)。受很多(duo)廣告宣(xuan)傳(chuan)的影響，很多(duo)佩戴(dai)者在(zai)(zai)(zai)選(xuan)(xuan)購隱(yin)形眼(yan)(yan)鏡(jing)(jing)(jing)時(shi)會(hui)選(xuan)(xuan)擇(ze)含(han)水(shui)量高的鏡(jing)(jing)(jing)片，認為含(han)水(shui)量越(yue)高鏡(jing)(jing)(jing)片質量越(yue)好。殊不知(zhi)鏡(jing)(jing)(jing)片的透(tou)氧(yang)性(xing)才是(shi)隱(yin)形眼(yan)(yan)鏡(jing)(jing)(jing)重(zhong)要的質量指標，佩戴(dai)隱(yin)形眼(yan)(yan)鏡(jing)(jing)(jing)的多(duo)種不適(shi)反應以(yi)及佩戴(dai)時(shi)間(jian)的長(chang)短多(duo)取決于(yu)(yu)鏡(jing)(jing)(jing)片的氧(yang)氣透(tou)過量，而現在(zai)(zai)(zai)所(suo)宣(xuan)傳(chuan)的鏡(jing)(jing)(jing)片高含(han)水(shui)量、超薄也是(shi)為了提高鏡(jing)(jing)(jing)片的透(tou)氧(yang)性(xing)。

　　關于隱(yin)形(xing)眼鏡(jing)透(tou)(tou)(tou)氧(yang)(yang)性(xing)(xing)(xing)能的檢(jian)測(ce)(ce)(ce)(ce)，ISO專為隱(yin)形(xing)眼鏡(jing)的透(tou)(tou)(tou)氧(yang)(yang)性(xing)(xing)(xing)檢(jian)測(ce)(ce)(ce)(ce)制定(ding)(ding)(ding)了檢(jian)測(ce)(ce)(ce)(ce)標準： ISO 9913-2適用(yong)于硬質(zhi)鏡(jing)片材(cai)料以及(ji)非水凝(ning)膠軟質(zhi)鏡(jing)片材(cai)料（rigidnon-hydrogel flexible contact lens materials），測(ce)(ce)(ce)(ce)試(shi)量(liang)有氧(yang)(yang)氣(qi)(qi)流(liu)量(liang)（oxygen flux）——j、氧(yang)(yang)滲透(tou)(tou)(tou)性(xing)(xing)(xing)（oxygen permeability）——Dk、氧(yang)(yang)透(tou)(tou)(tou)過率（oxygen transmissibility）——Dk/t、以及(ji)試(shi)樣(yang)的厚0.度(du)（thickness）——t，一(yi)般用(yong)Dk值(zhi)評(ping)價隱(yin)形(xing)眼鏡(jing)氧(yang)(yang)滲透(tou)(tou)(tou)性(xing)(xing)(xing)指標。檢(jian)測(ce)(ce)(ce)(ce)原理(li)如(ru)圖1所示：將(jiang)(jiang)試(shi)樣(yang)裝入測(ce)(ce)(ce)(ce)試(shi)腔后，測(ce)(ce)(ce)(ce)試(shi)腔被(bei)分為上下兩部(bu)分，上腔中(zhong)(zhong)(zhong)充入氧(yang)(yang)氣(qi)(qi)含量(liang)一(yi)定(ding)(ding)(ding)的測(ce)(ce)(ce)(ce)試(shi)氣(qi)(qi)體(ti)，載(zai)氣(qi)(qi)流(liu)經下腔后流(liu)入庫(ku)倫傳(chuan)感器(qi)中(zhong)(zhong)(zhong)，試(shi)樣(yang)兩邊的壓力相(xiang)等，但氧(yang)(yang)氣(qi)(qi)分壓不(bu)同，氧(yang)(yang)氣(qi)(qi)在濃度(du)差作用(yong)下透(tou)(tou)(tou)過薄(bo)膜(mo)進入載(zai)氣(qi)(qi)流(liu)，被(bei)送至庫(ku)侖傳(chuan)感器(qi)中(zhong)(zhong)(zhong)，由(you)庫(ku)侖傳(chuan)感器(qi)測(ce)(ce)(ce)(ce)量(liang)出氮(dan)氣(qi)(qi)流(liu)中(zhong)(zhong)(zhong)攜帶的氧(yang)(yang)氣(qi)(qi)量(liang)，從而計算出材(cai)料的氧(yang)(yang)氣(qi)(qi)透(tou)(tou)(tou)過率。透(tou)(tou)(tou)氧(yang)(yang)性(xing)(xing)(xing)檢(jian)測(ce)(ce)(ce)(ce)設(she)備在正式(shi)試(shi)驗(yan)之前需要使用(yong)參考膜(mo)進行設(she)備標定(ding)(ding)(ding)，確定(ding)(ding)(ding)設(she)備的校正因子，并(bing)將(jiang)(jiang)它(ta)用(yong)于正式(shi)試(shi)驗(yan)的計算中(zhong)(zhong)(zhong)。標準ISO 9913-2中(zhong)(zhong)(zhong)明確指出用(yong)于標定(ding)(ding)(ding)的試(shi)樣(yang)為SRM 1470，與薄(bo)膜(mo)測(ce)(ce)(ce)(ce)試(shi)標準ASTM D 3985中(zhong)(zhong)(zhong)使用(yong)的參考膜(mo)是(shi)一(yi)樣(yang)的。

 檢測(ce)儀器：

           OTR-D3氧(yang)氣透過率測試儀

測試原(yuan)理：

試樣安(an)裝在測試腔(qiang)(qiang)(qiang)樣氣(qi)、載氣(qi)腔(qiang)(qiang)(qiang)之間(jian)，控制測試腔(qiang)(qiang)(qiang)的溫度，樣氣(qi)腔(qiang)(qiang)(qiang)氧氣(qi)滲透到載氣(qi)腔(qiang)(qiang)(qiang)，由載氣(qi)攜帶(dai)至痕量氧傳(chuan)(chuan)感器；精確(que)測量痕量氧傳(chuan)(chuan)感器產生的電流，計算樣品氧氣(qi)透過量和其它參數。

       山東普創工業(ye)科(ke)技(ji)有限公(gong)司(si)一直專注于(yu)醫療器(qi)械和包材檢(jian)測的(de)理論研(yan)究，以及(ji)精密檢(jian)測設備制造。憑借(jie)13年的(de)技(ji)術(shu)積累和服(fu)務經驗(yan)擁有了幾十項技(ji)術(shu)zhuanli及(ji)軟件著作。產品(pin)廣泛服(fu)務于(yu)國(guo)家(jia)質檢(jian)藥檢(jian)機構、醫療器(qi)械、印刷、包裝、醫藥、日化、科(ke)研(yan)院(yuan)校、光伏、食品(pin)、醫藥、化工、新(xin)能源、新(xin)材料等領域(yu)。在業(ye)界(jie)樹立了“專業(ye)、嚴謹、售后服(fu)務體系(xi)完(wan)善(shan)"的(de)良好形(xing)象(xiang)。