The former world champion will next face another Frenchman, world number 16 Toma Popov, on Wednesday.
Yeo booked her place in the round of 16 with a 21-14, 21-13 win over Busanan Ongbamrungphan.
Despite facing an opponent who had caused her problems in the past, the world number 11 showed good composure despite trailing early in both games.
Yeo, who had a 3-3 head-to-head record against Busanan, would trail 10-11 in the interval of the first game. But urged on by a partisan crowd, she dug deep to pull away.
It was Busanan once again with the early initiative in the second, but Yeo would be denied, going in front 9-8 and seeing the match out.
She will next face South Korea’s world number one and defending champion An Se Young. An is also the reigning Olympic champion and has an 8-2 winning record against Yeo.
“(In) the first round, you kind of need to get rid of your nerves. I’m happy I could keep the focus mostly throughout the match and keep the pressure on her,” said Yeo, who is playing through the pain of old injuries.
The first Singaporean to take the court on Tuesday was world number 24 Jason Teh, who had the toughest assignment in the form of world number one Shi Yu Qi.
Teh had faced Shi on one previous occasion in 2023, with the latter winning in straight games. But this 46-minute contest would be a tougher one.
While the Singaporean trailed 2-7 early on, he caused Shi a couple of problems before going down fighting 16-21.
After the change of sides, Teh continued to build momentum and went into the interval with a three-point lead.
But Shi showed his mettle to turn a 9-13 deficit to level at 15-15. He wrestled control of the lead at 17-16 as his 24-year-old opponent hit a forehand drop shot into the net and took the second game 21-16.
“In terms of fighting spirit and my attitude on court, I feel like I’ve already given my all,” said Teh.
“But (level of) ability-wse, there is still a gap between me and Shi Yu Qi. Through this match I learnt a lot and I hope to do better next game.”
