Phaco Training: Differentiating Corneal Dendrites from Psuedo-Dendrites

Characteristics of True Dendrites:

1. Usually centrally located

2. Linear branching with central ulceration staining with fluorescein

3. Terminal bulbs and swollen borders present

Still, not every true dendrite should be assumed to be a Herpes Simplex Keratitis

Pseudo-dendrites are almost always non-HSV

1. HZO – Absence of terminal buds, smaller in size and elevated without central ulceration
2. Contact Lens Wear – Disappear on discontinuation
3. Recurrent corneal Ulcer due to Cogan’s Microcystic Dystrophy
4. Post traumatic corneal abrasion