Hello David,
It depends whether you're wanting to select (a) only the eyes (i.e. the eyeballs) or (b) the area around the eyes as well.
If it's (a), you could use the
background removal tool found under the
Guided tab.
Select the eyes, then invert the selected area. After clicking Apply, use Save to to save as .png.
If it's (b), you can just use the
Cropping tool under
Regional Adjustment Tools. Resize the cropping box, click Done, then export your new image.
If I've misunderstood what you're trying to do, just say
PIX
PIX YouTube channel