在這個充滿現代科技、生活品質提昇、重視個人需要及滿足的時代，眼科病人的需求往往不只是疾病治療及手術而已，相對的也要求醫療品質及安全性。眼睛白內障(Cataract)是一種眼科常見的手術，其病因為眼睛內的水晶體混濁而阻礙光線進入視網膜，所以嚴重者會引起視力障礙，現今解決白內障的方式多是由手術去除混濁之水晶體並代之以人工水晶體(Intraocular lens, IOL)植入，然而手術皆有風險性，尤其是術後眼球內之感染，往往因不易有效預防與控制故常導致失明，若是在術中植入有殺菌作用之奈米材料(Nanomaterial)光觸媒人工水晶體，能直接且有效的殺死人工水晶體表面之微生物或術中因器械帶入之微生物及其他有毒物質，將是一種可行的有效方法，另外奈米人工水晶體也能氧化(Oxidized)水晶體後囊(Posterior capsule)之上皮細胞，附帶減少後囊因後囊細胞增生產生的混濁，即減少術後繼發性白內障(After Cataract)發生的視力影響，基於以上之動機，本研究以人工水晶體奈米表面塗層之光催化作用(Photocatalysis)為研究，期待能有效減少白內障術後之感染及繼發性白內障的出現，以增高病人的生活品質及滿意度。

Living in this era, full of modern technology, people are pursuing a higher quality of life and more solutions to satisfy individual needs. In medical care, people are no longer content with basic medical and surgical treatment which mandates a higher quality in standard of care.
Cataracts occur when incident light is unable to reach the retina due to opacification of the eye’s crystalline lens. The treatment is to remove the opacified lens, replacing it with an artificial intraocular lens (IOL). However, similar to other intraocular surgical risks, endophthalmitis can occur. Endophthalmitis caused by post-surgical intraocular infection is difficult to treat and often leads to patient blindness. A bactericidal intraocular lens that is made of nanomaterial with photocatalyst property would be an effective method to prevent the infection. Furthermore, this nano-IOL can also prevent post surgical after cataract, a condition due to proliferation of the epithelium of the leftover lens’ capsule.
This study is to investigate the property and effects of the nano-IOL’s photocatalysis for the purpose of reducing the rate of post-surgical intraocular infection and after cataract to increase patient’s satisfaction and quality of life.

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