Prenatal vitamins side effects

Hi. I've been trying ttc and have been adding prenatal vitamins and omega 3 to my daily supplements apart from folic acid. About 2-3 weeks later i had red eyes, sensitive to lights, blurry vision and assumed its eye infection due to contact lens and just got eye drops from the gp. It got better for about a week and it happened again. My husband was thinking its because of the vitamins i take daily as it happened after i start to consume them. Isit true that there are side effects from these vitamins as idw to visit the gp again