Architectural analysis of subconjunctival oblique limbus incision techniques in manual cataract extraction surgery by optical coherence tomography imaging |
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| Authors: | Jun Yang Fang Han Liming Song Xin Huang Yijing Jiang Pinghong Lai |
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| Affiliation: | Ophthalmology Department, The First People’s Hospital of Yunnan Province, P.R.C, The Affiliated Hospital of Kunming University of Science and Technology, People’s Republic of China;1.Ophthalmology Department, Jiangxi Provincial People’s Hospital, Nanchang, Jiangxi Province, P.R.C; The First Affiliated Hospital of Nanchang Medical College, People’s Republic of China |
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| Abstract: | ![]()
The purpose was to assess the profile of subconjunctival oblique limbus incision (SCOLI) design by using anterior-segment optical coherence tomography (AS-OCT) and try to emphasize the proper technique of wound construction. The structural dimensions and integrity of the wound were acquired from the patients, who had undergone manual small-incision cataract surgery with SCOLI techniques, using a Canon OCT anterior-segment imaging system on the first postoperative day. The use of AS-OCT allowed for an in vivo evaluation of SCOLI in high definition. The radial OCT scan image showed three staggered incisions, including conjunctiva incision, scleral entrance, and inner corneal lip. A tangential scan demonstrated that the internal lip is parallel to the curvature of the peripheral cornea. The en face image showed an asymmetric 4 arc-shaped configuration rather than a symmetrical one. In conclusion, AS-OCT could be used to analyze SCOLI to determine optimal wound construction and geometry. The results of this study indicated that an asymmetric 4 arc-shaped limbus tunnel incision was superior to the conventional linear equivalent in stability and nucleus delivery. |
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| Keywords: | Anterior-segment optical coherence tomography incisional funnel manual small-incision cataract surgery subconjunctival oblique limbus incisions |
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