What is one of the first signs of orbital cellulitis?

Unilateral swelling and pain around the eye is a classic and often one of the earliest signs of orbital cellulitis. This condition is an infection that typically affects the tissues surrounding the eye and can lead to serious complications if not treated promptly. The swelling usually occurs because of inflammation, which is a common response to infection. Pain may accompany the swelling as a result of irritation in the affected area.

Recognizing swelling and pain is crucial for early diagnosis and treatment, as delayed intervention can lead to potential complications such as vision loss or the spread of infection. In contrast, while double vision, persistent headaches, and difficulty seeing at night may also occur as the condition progresses or in response to other related issues, they are not typically the first signs observed. The immediate presence of swelling and tenderness serves as a prompt indicator that warrants further evaluation and management.