Pete,
haven't you heard that people who own really expensive eyepieces learn how to see aberrations in cheaper eyepieces? This learned skill helps justify the purchase of yet more expensive eyepieces and make them feel better about spending mucho dollars..........
Besides, the Kasai in f4.5 or slower scopes is better than a Panoptic (particularly at the center of the field where it's transparency and sharpness makes the Panoptic 35mm look like it sucks light and is slightly blurry).I have Stratus/Hyperion clones and I can't see any problems at the edge either in my Skywatcher.
There's nothing wrong with your eyes, you just don't have to justify expensive purchases to yourself
cheers
Gary