Your symptoms of light sensitivity and involuntary eye closure suggest photophobia and blepharospasm (eyelid spasms). This is often linked to dry eyes or ocular irritation. For temporary relief, you can use preservative-free lubricating eye drops (artificial tears) to soothe the surface of your eyes, and wear polarised sunglasses when outdoors. However, because these symptoms require a proper diagnosis to treat the root cause effectively, you should consult an ophthalmologist. Depending on their findings, they may recommend specific prescription drops or treatments like botulinum toxin injections to relax the eyelid muscles. Please seek a professional evaluation for a safe, personalised treatment plan.