Instead of or in addition to sconces hidden lights can add a general glow that bounces off the wall and into the room in an even subtler and more diffuse way. Cove lights are built into niches that hide the light source (often a plain LED strip) but hidden lights can also be obscured by medicine cabinets shelving or storage units.
Sconces come in many forms from artistic and ornate to sleek and simple and can hold just one bulb or many. Single-bulb sconces that are spread farther apart will add light around eye level for more even brightness. For the total elimination of shadows pairing two-light fixtures spaced closer together will achieve a salon level of clarity.
Translucent glass shades on pendant fixtures will reduce glare in the kitchen. Hanging overhead lighting fixtures such as pendants should sit 30 to 36 inches above the island work surface.