Can be categorized as
- Acute ( < than 2 weeks)
- Chronic ( longer duration)
Acute follicular conjunctivitis:
Usually unilateral – other eye may be involved in a week
Accompanied by preauricular lymphadenopathy
DD:
- EKC ( adeno virus 8 commonly )
- PCF ( 3 and 7 )
- Primary HSV KC
- Adult inclusion conjunctivitis
- Hemorrhagic conjunctivitis
- Newcastle disease conjunctivitis
- Acute trachoma
- Neonatal inclusion conjunctivitis
Chronic follicular conjunctivitis:
Longer than 2 weeks
Acute onset ,persistent disease
Insidious disease development
DD:
- Trachoma
- Inclusion conjunctivitis
- Molluscum contagiosum
- Drug induced conjunctivitis (eserine, idoxuridine and eye cosmetics)
- Bacterial conjunctivitis ( moraxella)
- Axenfeld s chronic follicular conjunctivitis ( orphan conjunctivitis)
- Merrill thygeson chronic FC
- Parinaud s oculoglandular syndrome
- Folliculosis of childhood
