Closing the eyes is always disliked even when it clearly helps prevent a serious distraction and improves Khushu.

Disliked Acts in Prayer, Part 1: Movement, Clothing, Recitation, and Posture

• It is a Sunnah act.
• It is mildly disliked (Makruh Tanzihan).
• It immediately invalidates the prostration.
• It is only disliked for women.