Oh, and he wrote a hell of a lot of movie novelizations as well, including the book version of The Last Starfighter.
So I read this book, and enjoyed it. And when Empire came out, and later Jedi, got really confused because things didn't mesh up with the book I'd read.
I expected things to make sense.
Anyway, I was recently reminded of this book when I stumbled into this review of it at Recalcitrant Male Watches Cinema:
On its own, Splinter of the Mind's Eye is a solidly entertaining, reasonably well-written piece of light pulp. It doesn't really fit well into what the franchise would later become and got swept under the rug more often than not by later writers, but Dark Horse Comics adapted the story in the 90s with a bunch of continuity fixes to bring it closer in line with the Expanded Universe proper. It doesn't have a whole lot of substance going on, and its not as grandly ambitious as The Thrawn Trilogy, but I would recommend it as a snapshot of the humble early years of Star Wars.
Kalvaitis notes is strengths, weaknesses, its background, and the various issues that caused it to later be ignored. Worth reading, and in my memory, a fun book.