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Comparison of initial outcomes of conventional microscope cataract surgery and heads-up cataract surgery using a digital microscope

Poster Details

First Author: Y.Furukawa JAPAN

Co Author(s):    K. Ichikawa   S. Yokoyama   T. Kojima   Y. Tanaka   R. Horai   K. Ichikawa     

Abstract Details


To compare the initial outcomes between conventional cataract surgery and heads-up cataract surgery using a digital microscope by a skilled ophthalmologist.


Chukyo Eye Clinic, Nagoya, Japan


A total of 50 cases (43 eyes of 50 patients, mean age, 73.6 ± 8.3 years) treated with a digital microscope (ARTEVO800)-assisted heads-up cataract surgery (HU group) by a skilled ophthalmologist (cataract surgery experience: 42 years, total surgeries: approximately 90,000) at the Chukyo Eye Clinic from November 2019 to January 2020 were prospectively investigated. Concurrently, patients who underwent conventional microscope cataract surgery were randomly selected as the control group. Intergroup comparisons were made based on the following parameters: circular continuous capsulorrhexis (CCC), surgery time, cumulative ultrasonic energy (CDE), flare, and complication rate after a day of surgery.


The mean surgery time in the HU group (390 ± 83.5 s) was significantly longer than that in the control group (341.7 ± 51.5 s; P < 0.0001). CCC was significantly larger in the HU group (0.897 ± 0.007) than in the control group (0.893 ± 0.007; P = 0.0048). No significant differences existed between the two groups considering the CDE and flare values. The complication rate was 1.04% in the HU group and 0.60% in the control group.


Our early results revealed that even skilled surgeons may require longer time to perform heads-up cataract surgery than conventional surgery. However, the accuracy of cataract surgery may be improved by the heads-up cataract surgery. Overall, this new surgical method was considered useful.

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