Conjunctival Hyperemia is a medical condition in which the sclera of the eyes is characterized by redness. What happens is that the blood vessels of the eyes become dilated, hence the characteristic aspect.

Symptoms of Conjunctival Congestion
Apart from the characteristic redness, these are the most common symptoms associated with conjunctival hyperemia:
-- Pain in the eye
-- Blurry vision or loss of vision
-- Increased sensitivity to light (photophobia)
-- Systemic symptoms (swollen lymph nodes, fever, nausea and vomiting) are encountered in acute cases (suggestive of infection)

Causes of Conjunctival Congestion
-- Conjunctivitis
-- Infectious – bacterial, viral; gonococcal, chlamydial
-- Recurring (chronic conjunctival hyperemia)
-- Allergic – direct exposure to different allergens (pollen, dust mites or dander from pets)
-- Trauma or injury
-- Endogenous ocular health problems (suggestive of a systemic disease)

Inflammation of the eye sclera (scleritis or episcleritis)
-- Leads to the dilatation of the blood vessels in the eye
-- Commonly associated with autoimmune disorders, such as Rheumatoid Arthritis

Keratitis – most commonly caused by bacterial or viral infection
-- Associated risk factors include: wearing contact lenses, trauma to the eye, surgical intervention on the cornea, reduced immunity
-- Intraocular inflammation
-- Subconjunctival hemorrhage
-- Sepsis (especially if there are systemic symptoms present)