Redness after reading or watching TV is very common and usually caused by mild dry eyes, as we tend to blink less when focusing. To soothe and prevent this, I recommend using preservative-free lubricating eye drops (artificial tears) containing carboxymethylcellulose or propylene glycol. These safely hydrate your eyes. Avoid decongestant drops (like tetrahydrozoline) marketed to remove redness, as they can cause rebound redness and worsen the condition over time. Additionally, try the 20-20-20 rule: every 20 minutes, look 20 feet away for 20 seconds to rest your eyes. If redness persists or you experience pain, please consult an eye specialist.