This triangle face shape is defined by a narrow forehead and a strong mouth and chin (egg shaped). The goal with a triangle face is to add width to the top of your face to create balance and proportion.
Choose frames with a thin rim or rimless and straight top lines to balance the bottom part of the face.
Frames should not sit too high on the face. Avoid large frames, heavy nose bridges, bold colors and square frames.
Cat-eye frames are also a great solution as long as they are wide enough to balance the jaw line.