I'm so very sorry to hear about your pet. We grow to love them so, and they become very important to us.
However, just to let you know, I've heard that blind animals can do quite well without seeing. They have a keen sense of smell, which can guide them around.
Your little dog will always know you by your scent. She will always come to you when you call, and she will no doubt love you more than ever.
Are the drops for pain? I don't know too much about glucoma in animals.
Sentinel