Hello and thank you for your question.
There are a number of things that can be causing this redness.
1. Conjunctivitis: this can be the result of a bacterial infection, a viral infection, or even allergies. If there is significant itching in the inner corner of the eyes, this may support an allergic cause, especially if there is already a history of seasonal allergies. Viral conjunctivitis usually is associated with a recent cold, or exposure to someone with a red eye; however, usually the eye is not red in just one sector. Bacterial conjunctivitis is usually associated with a more profound redness, but the hallmark is thick, yellow-greenish discharge that is more in volume than just needing to dab with a tissue..
2. Episcleritis / Scleritis: these are more uncommon causes of red eye, but not rare. People with episcleritis often just have a red eye and no other symptoms such as eye pain, sensitivity to light, discharge or decreased vision. Patients with scleritis will usually have a significant deep/boring eye pain and may have sensitivity to light as well.
3. Secondary conjunctivitis: if you have significant sinus problems on that side, the pathway that drains tears which leads from your eyelid to your nose may be constricted from the swelling in the noses/sinuses. This may lead to backup and stasis of tears which can cause a nasolacrimal infection and spillover inflammation to the conjunctiva surrounding the tear duct on the eyelid.
The bot***** *****ne is however, it is often quite difficult for primary care doctors to know which of these diagnoses is correct, conclusively. I would, therefore, recommend you see an ophthalmologist who can sort these issues out.
Does that help address your concerns?
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