Do you still sit at a desk with a keyboard and mouse, or have you set it up differently to keep your shoulders from rolling forward out of the Burmese posture?
my teachers taught me to tuck my chin slightly when i meditate. my neck (T6 and below of the thoracic vertebrae) stay straight, it's only the the cervical vertebrae which tuck downward giving me a full view of my screen, eyes slightly cast down.