It is very common to experience eye strain from prolonged screen use, often due to decreased blinking, which dries the eyes. You can get relief using over-the-counter lubricating eye drops (artificial tears), preferably preservative-free options containing carboxymethylcellulose. Additionally, practice the 20-20-20 rule: every 20 minutes, look 20 feet away for 20 seconds. While these drops help, you should consult an eye specialist if symptoms persist, worsen, or are accompanied by headaches. A quick exam can check if you need computer glasses or have underlying dry eyes. Please do not worry; this is a very common and highly manageable issue.

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.