This is a very quick technique for whitening bloodshot eyes in Photoshop. There are more professional methods available, but this one is nice and easy.
Open the image you wish to fix. I’m going to use this image I took of my fiance outside my apartment. If you look closely you can see me in the reflection of her eye.
Now press L to get the lasso tool selected and draw a selection around the white part of the eye. You can do half the eye if you need too and then press and hold the shift key while you draw a selection around the other half of the eye. Feel free to zoom in if you need to.
Click “Select” at the top of Photoshop and scroll down to modify; select feather from the fly-out menu. Enter 2 px in the feather selection option menu that pops-up and press enter. This softens the selection so our changes wont be noticeable.
Press Ctrl-U (Mac: Command-U) to bring up the Hue and Saturation panel.
Click the drop down menu at the top and select Reds. Make sure you have the preview button checked and then slide the Saturation bar to the left until your eye looks good.
Click the drop down menu at the top again and switch it back to master. Once you’ve got master selected you can slide the Lightness slider over to the right to bright up the eyes.
If you’ve followed all of the instructions you should have a nice looking white eye now. Good Job! Check out my before and after pictures below.