@surfing Welcome back to Mayo Clinic Connect, a place to give and get support. Since your husband's cataract surgery he has experienced extreme light sensitivity and he has seen 5 providers and he has still not found a resolution to the issue.

Above, @johnbishop linked a previous discussion you may find helpful related to extreme light sensitivity.

Everyone has different situations and/or resources available. Have you traveled for care? Below I have linked what has been named the best hospital systems for Ophthalmology.
- Best Hospitals for Ophthalmology https://health.usnews.com/best-hospitals/rankings/ophthalmology

I'm wondering if you and your husband have considered seeking out a particular provider that specializes in his issue?