。
She kept her eyes shut.
Literal
[topic-は] eyes [object-を] closed [in-state-ままで] was.
~たまま describes a maintained state — 'in the (closed) state of having shut [her eyes],' i.e., the action happened and that condition stuck. The construction で + いる makes 'remain in that state.' Distinct from ~ている (resulting state) in that ~たまま emphasizes the unchanged persistence of the state, often with a sense that another action is happening (or fails to happen) while it persists. Common in narrative — 'she kept her eyes shut while X.'