Hello, It could be due to dry eyes that you are feeling redness and irritation in the eyes if you were already diagnosed with it.
This is due to abnormalities in the tear film as well as due to reduced secretion of tear or could be due to excessive evaporation of tears.
Next Steps
Kindly consult your nearest ophthalmologist if it worsens and for now you can use refresh tears or softvisc lubricant eyedrops 4 times daily one drop in each eye at a time and avoid exacerbating factors like smoke and prolonged screen time.
Health Tips
Avoid exacerbating factors like smoke and prolonged screen time