。
My eyes feel gritty.
Literal
Eye [subject-が] gritty-gritty does.
ゴロゴロ has several uses — 'rumbling' (thunder, a cat's purr), 'rolling' (something big tumbling), 'lounging' (lazing around at home) — and here, for eyes, it's the sensation of a foreign object rolling around inside: grit, an eyelash, a feeling that something is caught. Mimetics often cover a range of related sensory impressions, with context picking out the relevant one.