Although the Brazilian-born marksman is yet to make his Arsenal first-team comeback, he has been recalled to the national side by Slaven Bilic.
Eduardo has spent over a year on the sidelines after suffering a broken fibula and dislocated ankle in The Gunners' draw against Birmingham City.
The striker missed out on Euro 2008 with the injury, but Corluka is pleased the 25-year-old is back along his international colleagues.
"I'm glad that Eduardo is here. We've missed him in recent games," Corluka told Sky Sports News.
Very important"It means a lot, because he was scoring goals for us and he's a very important player.
"With Eduardo we're much stronger. We've got a striker who can keep the ball and score goals."
Spurs were held to a 0-0 draw by Arsenal on Sunday and Corluka believes they can no longer afford to drop points against their relegation rivals.
"It was a difficult match for us. I thought we were the better side, but we didn't take our chances, but it's okay," he continued.
"I think at this moment we need to play much better against teams in our position. We now need to take points against everyone
"Hopefully we can beat them and then enjoy the matches against Chelsea and teams like that."