發(fā)布時(shí)間：2018-06-25 19:12

  本文選題：白內(nèi)障 + IOL��； 參考：《中國醫(yī)科大學(xué)》2010年碩士論文

【摘要】： 目的 觀察和比較8種不同設(shè)計(jì)方式的人工晶狀體(IOL)光學(xué)區(qū)邊緣不同部位產(chǎn)生散射光的差異。探討白內(nèi)障術(shù)后人工晶狀體眼患者產(chǎn)生不良視覺現(xiàn)象的影響因素。 方法建立IOL體外照射模型,用單色激光分別對三片式組和單片式組IOL的上邊緣和袢-光學(xué)區(qū)結(jié)合部進(jìn)行不同角度的照射。當(dāng)光線投射到模擬視網(wǎng)膜的平面上形成映像時(shí),用數(shù)碼相機(jī)即時(shí)拍攝,觀察并比較兩組不同IOL產(chǎn)生的光線圖像的差異。 結(jié)果 在對上邊緣照射時(shí),兩組IOL因邊緣形態(tài)不同而產(chǎn)生了圖像差異；在對袢-光學(xué)區(qū)結(jié)合部照射時(shí),三片式組IOL產(chǎn)生了不同于大部分單片式組的明顯線狀光影或中心旁致密光斑,而邊緣較為特殊的單片式晶體TYPE-1C也產(chǎn)生了中心旁致密光斑和長光帶影。 結(jié)論 IOL邊緣的袢-光學(xué)區(qū)結(jié)合部內(nèi)的不規(guī)則結(jié)構(gòu),會(huì)誘發(fā)明顯的散射效應(yīng),IOL邊緣散射光的存在是引起白內(nèi)障術(shù)后IOL眼患者出現(xiàn)眩光或其他不良視覺現(xiàn)象的一個(gè)重要原因。
[Abstract]:Objective to observe and compare the difference of scattering light in the optical region of IOL with eight different designs. Objective: to investigate the influencing factors of abnormal vision in patients with intraocular lens after cataract surgery. Methods the model of IOL irradiation in vitro was established. The upper edge of IOL and the junction of loop optical region were irradiated with monochromatic laser at different angles. When the light is projected onto the plane of the simulated retina to form an image, the difference between the two groups of light images produced by different IOL is observed and compared. Results when the upper edge was irradiated, the two groups of IOL had different images due to the difference of edge morphology. Different from most monolithic groups, IOL produced obvious linear or paracentral dense spot, while TYPE-1C, which has special edge, also produced paracentral dense spot and long band shadow. Conclusion the irregular structure in the junction of the loop optical region at the edge of IOL. The presence of edge scattering light in IOL is an important cause of glare or other poor vision in IOL eyes after cataract surgery.
【學(xué)位授予單位】：中國醫(yī)科大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2010
【分類號】：R779.66

【引證文獻(xiàn)】

相關(guān)期刊論文 前1條

1 吳來偉;陳子林;;人工晶體眼異常眩光幻影的研究進(jìn)展[J];醫(yī)學(xué)綜述;2011年07期

相關(guān)碩士學(xué)位論文 前1條

1 吳來偉;光適應(yīng)治療人工晶體眼眩光幻影的臨床研究[D];汕頭大學(xué);2011年

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本文編號：2067177