Hi

After playing freespace and freespace 2, i was recommended to try descent 3.

I tried playing it but it irritated my eyes and i just could not stand it? This did not happen with Freespace.

Any suggestions?

Blink more often. Use the free ports that give it higher resolution

Try Descent 1?

I've loved the series since the beginning but I notice a difference between 1&2. The game is unabashedly said to give you vertigo but I notice that I can play Descent 1 for hours on end but I have to stop frequently while playing Descent II. I love it but it just tends to give me the occasional headache and hurt my eyes as well.
I feel like the cause for this could be bigger, more open rooms and more loopy, curvy tunnels than D1's almost linear setup.
D3 is just a whole new atmosphere. Personally, I haven't had as many issues in D3 as D2, but I've only recently rediscovered and started playing the game so I can't make as informed a verdict on it. Still, I feel like out of the 3 games, the original Descent is the least likely to give me any pain in the head or eyes.

Just remember that when you're playing in these "six degrees of motion" games, it really throws your equilibrium for a loop! I would just make sure to take breaks and if blinking and resolution helps then go with that too.

Pull them out.
You won't need them where we're going on the 21st.