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To describe a practical, self-assembled continuous curvilinear capsulorhexis (CCC) self-training system to facilitate resident self-training and shorten the CCC learning curve. This was a prospective experimental study that included a total of 600 capsulorhexis cases. A device for CCC practice was self-assembled and used for training and testing. Based on capsulorhexis manipulation experience, three main groups of residents (A, capsulorhexis experience with <50 cases; B, capsulorhexis experience with 400-500 cases; and C, capsulorhexis experience with >1000 cases) were created. Furthermore, based on different capsulorhexis conditions, each main group was divided into four subgroups (1, CCC without an anterior chamber cover and capsulorhexis marker; 2, CCC with an anterior chamber cover without a capsulorhexis marker; 3, CCC with an anterior chamber cover and a capsulorhexis marker; and 4, CCC with an anterior chamber cover and a capsulorhexis marker under 2.5 times magnification). Three CCC-related parameters, including acircularity index (AI), axis ratio (AR), and capsulorhexis time, were statistically evaluated. We compared the differences in study parameters among 50 consecutively completed capsulorhexis cases by one trainee with different capsulorhexis experience in each subgroup. The CCC-related parameter values in subgroups 1 and 4 were significantly different among the three groups (P < 0.001). The capsulorhexis time in subgroup 2 was significantly different among the three groups (P < 0.001). The capsulorhexis time and AI in subgroup 3 were significantly different among the three groups (P < 0.001). Moreover, with increasing manipulation experience (from group A-C), the capsulorhexis time, the AI, and AR tended to decrease. With the help of the CCC marker, in subgroups 3 and 4, the AI and AR were closer to 1.0. This self-assembled CCC self-training system is practical. The CCC marker seems helpful for size specification and centration during self-training.

Citation

Jing Dong, Xiaogang Wang, Xiaoliang Wang, Junhong Li. A practical continuous curvilinear capsulorhexis self-training system. Indian journal of ophthalmology. 2021 Oct;69(10):2678-2686

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PMID: 34571614

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