Abstract
Vol.39 No.2
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Effects of Light Emitting Diode (LED) illumination in ICSI
JMOR, 39(2) 99-103, 2022
In recent years, it has become possible to use light-emitting diodes (LEDs) as a light source for microscopes, but there have been few reports on the effects of exposing human oocytes to LED light. In this study, we compared the effects of different light sources on ICSI results using the same type of inverted microscope connected to LED or halogen lamps. In 703 cycles (2,122) of the halogen group and 687 cycles (2,041) of the LED group, the embryo cleavage rate of the LED group was significantly higher than that of the halogen group (92.6% vs 94.4% P = 0.027), and the good cleavage rate per normal fertilization was significantly higher in the halogen group (55.0% vs 51.3% P = 0.03). On the other hand, there were no significant differences in the Day 5 and Day 6 blastocyst development rates, good blastocyst rate on Day 5, clinical pregnancy rate, or miscarriage rate between the two groups. These results suggest that a LED light source may affect early embryonic development compared to halogen lamp light, but does not affect the final blastocyst development or pregnancy outcome, further suggesting that LED light is safe to use in human embryo ICSI.
