[2] He led his team to a 3A state title, recording 21 points and 14 rebounds against Paolo Banchero and O'Dea High School in the final, and received tournament MVP.

[6][7] A four-star recruit, he committed to playing college basketball for Cincinnati over offers from Colorado and USC.

[9] As a freshman at Cincinnati, he averaged 7.3 points, 5.9 rebounds, 1.3 blocks, and 1.2 steals per game, earning American Athletic Conference All-Freshman Team honors.

[15] On July 18, 2022, Eason was named to the All-NBA Summer League First Team, averaging 17.2 points on 44.7 percent shooting from the field along with 1.8 steals and a block.

[16] On October 2, Eason made his preseason debut, scoring 21 points off the bench in addition to securing ten rebounds, two assists, two steals, and one block in a 134–96 win against the San Antonio Spurs.