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Purpose: To study the role of digitally assisted vitreoretinal surgery (DAVS) as a learning and teaching tool compared to that of the standard binocular side?scope of the conventional analog microscope (CAM). Methods: This was a cross?sectional, observational study conducted at a tertiary eye care center and teaching institute in South India. Postgraduate residents and clinical fellows observed a predecided set of retinal surgical procedures using both DAVS and CAM. A detailed questionnaire was used to compare the participants’ subjective scoring of both the platforms in terms of level of comfort, clarity of image and stereopsis, level of understanding, and overall impression. Results: Thirty?six participants, including 20 residents and 16 fellows, took part in this study. DAVS obtained a higher score for all 15 questions compared to CAM and the differences were statistically significant. DAVS obtained a mean score of 4.80 (median: 5) whereas CAM obtained a mean score of 3.14 (median: 3) on a grading scale of 1–5 with regard to the overall experience of surgical viewing through either platform (P < 0.01). Conclusion: DAVS is a better learning and teaching tool compared to the side scope of the CAM from a learner’s perspective. Thus, DAVS can help beginners in the field of vitreoretinal surgery obtain a better understanding of the surgical steps prior to the initiation of hands?on training
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0.05.Therefore,the average EGDD of S.japonicum developing in snails from the Yangtze River basin was 631.44 degree days, with its 95% confidence interval from (426.76 - 836.12) degree days. Conclusion The EGDD of S.japonicum developing in different snail populations along the Yangtze River are quite similar.