I have hazel eyes and chose the blue coloured lenses. I bought these in my prescription so no need for any glasses. They are a larger lens than my normal and ergo the circumference of the lens is larger than my iris but not noticeable to anyone else. This is because for obvious reasons the centre of the lens needs to be free of colour to allow your pupil to dialate as normal. They are comfortable but not for extended use in my opinion.

I love these coloured contacts by freshlook. They are so fabulous they come In single color boxes or multi colour packs but my preferred choice is blue or grey since my natural colour is brown . The lighter contacts cover my dark brown eyes fantastically, and they are nice thin contacts that go in nice and easy and don't bother your eyes or sight at all, they are so comfortable you forget they are in your eye. They are great and with proper care and cleaning they can be worn more than once. I definitely recommend them if you're looking to change your eye colour for a night out or for a costume. They are great 10/10 .