I have had this problem for over 30 years. Mine was caused from a severe case of Conjunctivitus. I have taken many Allergy medicines over the years, but I have never noticed them affecting any increased growth, (I wish).
I have heard there may be a solution which was stumbled on accidentally by Eye Doctors who have administered eye drops for Glaucoma, that it caused lashes to grow, but there is one drawback, if you have light colored eyes, it may change your eye color to a dark pigment like brown eyes, and I have blue eyes, so I have been reluctant to pursue this perhaps new solution, but I am still thinking about it. It\'s just at my age, 53, I don\'t know if it\'s all that important anymore like it was when I was younger, since I have basically learned to live with it by wearing artificial eyelashes. I am curious though, and may see an Eye Specialist and see what they say. Good luck to you.