This tutorial will show you how to use the Lens Flare filter to create sinister B-movie glowing eyes (AKA the Evil Eye) effect in Photoshop.
Step 1: First, I'm going to darken the image using the gradient map. So, Open your image (ctrl +o), go to Layer > New Adjustment Layer > Gradient Map and change the gradient to black to white.
Step 2: Now change the layer mode of your 'Gradient Map 1' layer to 'Multiply'
Step 3: You can duplicate your 'Gradient Map 1' to make the image even darker.
Step 4: Duplicate your background layer, and place it on top of the stack of layers
Step 5: Now select you 'Background copy' layer, go to Filter > Render > Lens Flare. Choose the 105mm prime option, set the Brightness to 100 and position the flare over the subject's pupil.
Step 6: Repeat the Step 5 one more time to add a flare effect to the other eye
Step 7: Add layer mask to your 'Background Copy' layer, set your foreground color to black
Step 8: Click on your layer mask, choose a brush tool, set the brush size, play with the opacity, and start painting on the image to reveal the darkened image we did earlier.