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つくばリポジトリ (Tulips-R) >
0 コンテンツタイプ別 (Content type) >
01 雑誌発表論文等 (Journal article, etc.) >
Ophthalmology >
Please use this identifier to cite or link to this item:
http://hdl.handle.net/2241/103728
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| Title: | Changes in Corneal Topography after 25-Gauge Transconjunctival Sutureless Vitrectomy versus after 20-Gauge Standard Vitrectomy |
| Authors: | Okamoto, F.
Okamoto, C.
Sakata, N.
Hiratsuka, K.
Yamane, N.
Hiraoka, T.
Kaji, Y.
Oshika, T.
岡本, 史樹
平岡, 孝浩
加治, 優一
大鹿, 哲郎 |
| Issue Date: | Dec-2007 |
| Publisher: | Elsevier Inc. |
| Journal Title: | Ophthalmology |
| Volume: | 114 |
| Issue: | 12 |
| Start Page: | 2138 |
| End Page: | 2141 |
| DOI: | 10.1016/j.ophtha.2007.01.034 |
| PMID: | 18054632 |
| Abstract: | Purpose
To evaluate the changes in regular and irregular corneal astigmatism after 25-gauge transconjunctival sutureless vitrectomy and 20-gauge standard vitrectomy.
Design
Prospective observational comparative case series.
Participants
Thirty-two eyes of 32 patients undergoing 25-gauge transconjunctival sutureless vitrectomy and 25 eyes of 24 patients undergoing 20-gauge standard vitrectomy.
Methods
Corneal topography was obtained preoperatively and at 2 weeks and 1 month postoperatively.
Main Outcome Measures
The dioptric data of the central 3-mm zone of the cornea were decomposed using Fourier harmonic analysis into spherical power, regular astigmatism, asymmetry, and higher-order irregularity.
Results
None of the 4 Fourier indices changed throughout the observation period in the 25-gauge group. In the 20-gauge group, regular astigmatism, asymmetry, and higher-order irregularity were increased significantly at 2 weeks after vitrectomy (P<0.05, Wilcoxon signed-ranks test) and returned to preoperative levels by 1 month. The spherical power in the 20-gauge group did not change after surgery. For regular astigmatism, asymmetry, and higher-order irregularity, the 20-gauge group showed significantly greater surgically induced changes than the 25-gauge group (P<0.05, Mann–Whitney U test).
Conclusions
Twenty-five–gauge transconjunctival sutureless vitrectomy does not induce significant changes in corneal topography and exerts little influence on the optical quality of the cornea. |
| URI: | http://hdl.handle.net/2241/103728 |
| Rights: | © 2007 by the American Academy of Ophthalmology |
| Text Version: | author |
| Appears in Collections: | Ophthalmology
大鹿 哲郎 (Oshika Tetsuro)
加治 優一 (Kaji Yuichi)
平岡 孝浩 (Hiraoka Takahiro)
岡本 史樹 (Okamoto Fumiki)
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