I am very sorry about your husband's present eye pain.
With the description, you have provided there is a possibility of bacterial infection of;
1) Conjunctiva (it is the transparent layer of the eye).
2) Cornea (due to contact wore for a longer time), or
He needs strong antibiotic cream and maybe oral antibiotics.
He would also need a swab test from the eye to identify the causative bacteria and optimum antibiotic to eradicate the infection and prevent the recurrence.
It is strongly advised to go to the primary care physician/GP today or to the A&E.
I hope this interaction is helpful to you.
Wishing your husband a speedy resolution.
Please feel free for your follow up questions.
I would be happy to assist you further if you need any more information.
Thanks for using Just Answer.