Gray, sun-strained eyes

"Her gray, sun-strained eyes stared straight ahead, but she had deliberately shifted our relations, and for a moment, I thought I loved her."

I chose this sentence primarily because of the phrase, "Her gray, sun-strained eyes." In a simple phrase, Fitzgerald captured a world of color. To me, her eyes sound like a dark gray color, flecked with light gray. The phrase, "sun-strained eyes," give them a sense of purpose and hints at light gold flecks.
The phrase, "and for a moment, I thought I loved her," is indicative of the temporal emotions of the world they live in. Nick thought he loved her, but that emotion only stayed with him for a minute. Was it truly love then?

Her blue, stormy eyes looked toward the horizon, yet a door had been closed, and in that second, I knew I had lost her.