What condition is indicated by red and inflamed eyes, blurred vision, light sensitivity, and fever, closely surrounded by painful blisters?

The symptoms described — red and inflamed eyes, blurred vision, light sensitivity, fever, and painful blisters — align closely with ocular herpes. This condition is caused by the herpes simplex virus and can lead to a range of eye-related issues. The presence of painful blisters suggests the reactivation of the virus, which typically presents with outbreaks around the mouth or genital area, but can also affect the eye.

Ocular herpes often includes symptoms that parallel those of other common eye conditions, but the specific combination of symptoms here points to this viral infection. The involvement of systemic signs like fever also supports the diagnosis, as ocular herpes can be accompanied by systemic symptoms due to the viral infection.

In contrast, conditions like conjunctivitis, corneal abrasion, or allergic reactions tend to manifest differently. Conjunctivitis might lead to redness and irritation but usually does not include blisters or fever. Corneal abrasion primarily causes pain and discomfort without the blistering effect or fever. Allergic reactions typically involve itching and redness without the presence of blisters or systemic symptoms like fever. Thus, the combination of symptoms strongly points to ocular herpes as the correct answer.