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題 名 | Cornea Refractive Changes after Clear Cornea Phacoemulsification with Foldable Intraocular Lens=經角膜白內障晶體乳化手術併植入軟性人工水晶體後之角膜圖及屈光度變化 |
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作 者 | 周清光; 顏敏芳; 劉榮宏; | 書刊名 | 中華醫學雜誌 |
卷 期 | 60:4 1997.10[民86.10] |
頁 次 | 頁195-198 |
分類號 | 416.744 |
關鍵詞 | 經角膜晶體乳化手術; 摺疊式人工水晶體; 誘發性散光; Clear cornea phacoemulsification; Foldable intraocular lens; Induced cornea astigmatism; |
語 文 | 英文(English) |
中文摘要 | 背景:經角膜白內障晶體乳化並植軟性人工水晶體手術為目前最先進且廣為接受之白內障手術,由於東方眼裂較白種人狹窄,手術後之角膜屈光度極易因眼瞼壓迫而造成高 度而造散光變化。本研究係評估此先進之方法在術後可能造成之影響。 方法:納入40隻單純性白內障患眼作評估,其中22隻為右眼,18隻為左眼。術前測量其眼裂大小、角膜圖及其弧度,手術後一個月與三個月再重測其角膜變化。 結果:平均眼裂為長28.1 ± 0.9mm,寬度為8.2 ± 0.8mm,均較白種人狹小。手術後一個月之角膜屈度平均增加0.30 ± 0.35度,三個月再重測其角膜變化則為增加0.50 ± 0.43度,所有散光變化均朝向切口方向轉。此增加之散光度僅低於0.5屈光度,且為順向散光,故患者均能接受而不需多加校正。 結論:經由外側部角膜施行白內障晶體乳化併植入軟性人工水晶體手術後,角膜散光度之增中僅低於0.5屈光度。此順向之低度散光變化為一般患者所能接受,且與白種人之結果相近。 |
英文摘要 | Background: Clear cornea incision for phacoemulsification is the current trend of cataract surgery, with the benefits of small incision, quick rehabilitation and stable wound architecture. In our Oriental eyes with small palpebral fissure the cornea curvature is easily affected by the tight lid compression. Evaluation of the postoperative cornea topographic change after this procedure in our patient is thus necessary. Methods: Forty eyes with simple cataract were enrolled in this study. Among them 22 were right eyes and 18 were left eyes. All of them were through temporal clear cornea incision. A 2.65 mm length incision for phacoemulsification then enlarged to 3.5 mm for foldable intraocular lens implantation. The wound remained selfhealing without suture. Color topographies were taken before and then one and three months after surgery. Palpebral fissures were measured before surgery. Results: Induced cornea astigmatism measured as 0.30±0.35 diopter in the first postoperative month, and 0.50±0.43 diopter in the third postoperative month. All the induced astigmatism was toward the incision axis and with the rule shifting. Conclusions: Tolerable with-the-rule astigmatism shifting around 0.5 diopter was noted postoperatively via temporal clear cornea phacoemulsification with foldable intraocular lens implantation in our patients. |
本系統中英文摘要資訊取自各篇刊載內容。