A 30-year-old female presents with redness, inflammation, and pain to her left eye and has difficulty keeping her eyes open. Which condition is most likely?

• A. Acute Retinitis
• B. Conjunctivitis
• C. Corneal Abrasion
• D. Detached Retina

Answer: (B)

Recognizing conjunctivitis from other eye conditions based on surface symptoms.

Redness and inflammation of the visible part of the eye with discomfort and the sense that the eye won’t stay open easily is most characteristic of conjunctivitis, an inflammation of the conjunctiva. In this scenario, the irritation is driven by surface inflammation rather than deep eye damage, so pain tends to be mild to moderate and there may be some discharge or gritty sensation, making the lids stick together—especially in the morning.

The other conditions have features that don’t fit as well. A corneal abrasion causes sharp, intense eye pain and marked sensitivity to light, often with tearing, because the cornea is richly innervated. Retinitis involves the retina and typically presents with changes in vision such as blurred sight, floaters, or flashes, not just surface redness. A detached retina presents with sudden, typically painless loss of part of the vision or a curtain-like field defect, which again is not the same red, irritated, surface-eye picture.

So the presentation aligns with conjunctivitis, the most likely diagnosis. If the cause is suspected to be infectious, management focuses on hygiene and, depending on the cause, may include topical antimicrobials or supportive care.