Hi, I have had a cornea trasnplant in my eye and so am very interested about what masks will give the utmost protection. I have found fencing to be very safe however I would still like peace of mind while bouting. What is the difference between 350N and 1600N? Also, which is better, masks by Leon Paul or Uhlmann? are they the same or is there a difference considering I can obtain Uhlmann masks for $40 cheaper? Which company is more reputable among fencers? Thankyou. I would appreciate any comments as I am still very new to the technicalities of fencing equipment.