Id also say your thinking too much about the wrong aspect of it...be happy she noticed, in a fair amount of cases id consider it an ioi. Idk maybe girls notice and memorize everyones eye color they meet, but i probably couldnt name peoples eye colors on one hand if i tried. If anything consider it to be a bit above normal interest and go with it.
To answer your question, no its not a disqualification. Id guess shes interested in you.