Apply it in a thin streak along the line where the lashes begin, top and bottom.

Her eyes slowly followed the thin streak of light to its source.

Almost too quick to be seen, a thin streak of coherent light shot between his fingers.

There is a thin blue streak that runs along the lateral line.

A thin black streak ran at an upward angle from the floor to the ceiling.

He saw a thin streak of dullish light come from across the office.

He noted a thin streak that looked like a line dividing the sign into two sections.

The first thin streaks of light were showing now through the windows at the eastern end.

A thin streak of a woman bobbed up at the back.

Right around the horizon - one thin streak, as though the sun was trying to find a way through.