Have you done the CT scan
is due to optic disc
swelling secondary to elevated intracranial pressure
. Usually in bilateral form could be due to infective or inflammatory or infiltrates. Sometimes it is found in a routine eye checkup without any symptoms(as in your case), but needs an urgent CT Scan to find the cause and treat immediately.
If the swelling persists, the nerve
fibres get damaged and hence a visual loss corresponding that particular area. But once the intracranial pressure is controlled,( eliminate the cause) then it regresses slowly.
So I would suggest to take an immediate CT ( with contrast) for arriving a better diagnosis.
Sorry to say this,but take care of your eyes first an then proceed with your trip.