Moonlit Optometry Tray in Hanoi Rehab Gym

A plastic lens-flipper tray rests on a polished metal table inside a rehab gym, its white ridges catching the harsh, shadowless light of a black sky. The room features concrete walls and rows of exercise mats, yet the floor reflects the stark vacuum of space rather than rain. Warm candlelight glows from a small cluster of flames on a nearby cart, casting sharp, trembling highlights against the cold gray surfaces. Through a large window, the curved horizon of the moon stretches across the frame, devoid of atmosphere. The separation between diagnostic tools and rehabilitation equipment remains clear, their plastic and steel textures rigid under the airless sun. One shadow from the tray edge falls perfectly straight onto the tiled floor, defining the impossible geometry of the space.