Types of Conjunctivitis
1. Bacterial conjunctivitis
Staphylococcus aureus
Staphylococcus pneumoniae
Haemophilus influenzae
Chlamydia
1. Acute-muco purulent conjunctivitis
Affect mucus membrane of conjunctiva.
2. Acute purulent conjunctivitis
Purulent discharge from conjunctiva.
Caused by Neisseria gonorrhoea in adult.
In new born as ophthalmia neonatorum.
3. Membranous conjunctivitis
Caused by Corynebacterium diphtheria.
Membrane formation on the conjunctiva.
4. Pseudo membranous conjunctivitis
Caused by Staphylococcus, Streptococcus, Pneumococcus.
Exudates adhere to surface of inflamed conjunctiva.
5. Angular conjunctivitis
Whitish discharge at the outer canthus.
2. Viral conjunctivitis
Adenovirus
Herpes simplex virus (HSV)
Upper respiratory tract infection/common cold/sore throat.
3. Allergic Conjunctivitis
Inflammation of conjunctiva due to hypersensitivity reaction or allergic reaction.
1. Simple allergic conjunctivitis
a. Seasonal allergic conjunctivitis (SAC)
b. Perennial allergic conjunctivitis (PAC); house dust, mites
2. Vernal keratoconjunctivitis (VKC)
Type l hypersensitivity reaction of conjunctiva to exogenous allergens.
3. Atopic keratocongiuntivitis (AKC)
Associated with atopic dermatitis, provoked by pollens, inhalants.
4. Phlyctenular conjunctivitis
Type IV delayed hypersensitivity reaction of endogenous toxins, bacterial origin.
5. Contact dermoconjunctivitis
Type IV delayed hypersensitivity reaction to prolonged contact with chemicals and drugs.
4. Toxic or Chemical Conjunctivitis
When the irritating substance enters the eyes, suchas as; hair spray, chlorine in swimming pool, foreign object in eye, industrial pollutants.
5. Subconjunctival hemorrhage
When tiny vessels covering whites of eyes ruptured from trauma or change in pressure within head. The local area of white portion of eye become red.
6. Conjunctivitis associated with other disease condition
Cytomegalovirus (CMV), Systemic lupus erythematous (SLE), Crohn's disease, ulcerative colitis.
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