A very romantic and poetic Chinese rendering would be:
“世人皆入我眼,唯你直达我心。”
If you want a slightly softer, more intimate tone:
“我看见众人,却只真正看见你。”
And a more lyrical, almost cinematic version:
“人海之中,我目光所及皆是人,心之所向唯有你。”
If you tell me the context (love letter, tattoo, poem, movie line), I can refine it even more