The long term safety is unknown though, and patient do sometimes experience more serious issues like vision disturbances which can sometimes lead to blindness. (tctmed.com)
However, excessively long headaches, fever, vision disturbances, vaginal leak, or a general feeling of wrongness should all be taken seriously, even though they may be nothing. (medic8.com)
Symptoms of multiple sclerosis include muscle weakness and stiffness, balance and coordination problems, numbness and vision disturbances. (healingcare4u.org)