Bilateral conjunctival injection was reported by many publications to be the most common symptom after fever.

Class 2: Soft tissue involvement (oedema of conjunctivae and lids, conjunctival injection, etc.)

Humans exposed to a non-disabling dose of 12 mg-min/m will have signs of mild discomfort and conjunctival injection.

Short-lasting unilateral neuralgiform headache with conjunctival injection and tearing (SUNCT)

Anaphylaxis: Sometimes cases of anaphylaxis consisting of diffuse erythema, pruritus, conjunctival injection, fever, abdominal pain, edema, hypotension and bronchospastic reactions are observed.

The subacute phase begins when fever, rash, and lymphadenopathy resolve at about 1 to 2 weeks after the onset of fever, but irritability, anorexia, and conjunctival injection persist.

Symptoms include prostration, dyspnea, edema, conjunctival injection, viral exanthema, and CNS symptoms, including encephalitis, confusion, delirium, apathy, and aggression.

"Teashades" was also used to describe glasses worn to hide the effects of marijuana (conjunctival injection) or bloodshot eyes or the effects of opiates such as heroin (pupillary constriction).

Short-lasting Unilateral Neuralgiform headache with Conjunctival injection and Tearing, or SUNCT, is a rare type of primary headache that belongs to the group of headaches called trigeminal autonomic cephalalgia (TACs).

The acute febrile phase, which usually lasts for 1 to 2 weeks, is characterized by fever, conjunctival injection, erythema of the oral mucosa, erythema and swelling of the hands and feet, rash, cervical adenopathy, aseptic meningitis, diarrhea, and hepatic dysfunction.