It may help to contact a highly experienced yoga therapist in regards to instruction both on practicing Trataka to relax and improve the health of your eyes overall, and other forms of yoga for vision correction. I don’t know of any printed information, but have met a several advanced therapists who have helped people with various vision problems achieve successful improvement with time and practice.
Unfortunately I met them while traveling overseas and I don’t remember any of their full names or have contact information for them, but perhaps you could email some leading therapeutic organizations like the Krishnamacharya yoga therapy center in Chennai/Madras (www.khyf.net) , or maybe some of the Structural Yoga Therapy (Mukuna Styles) teachers on this board can help.
Please remember when working at your desk in the future to set a little alarm and at least take a break from staring at the screen every 30 minutes or so to do eye exercises, look near and far to you, or simply shut your eyes for a while and de-stress your mind and body with awareness. If your eyes are reacting this way, your body probably is suffering too. Look up some very simple postures or movements you can do while sitting in the chair every once in a while to keep the blood flowing through your body, and have someone instruct you in simple breathing exercises you can do there to. Remember to get up and walk around, eat well and smile often.
Good Luck!