This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Ophthalmology
In Herpes zoster keratitis all occurs except – 
Select and explain. 
A. Pseudodendritic keratitis, B. Anterior endothelial keratitis/Uveitis, C. Sclerokeratitis, D. Endothelitis
C: Sclerokeratitis
Answer: C: Sclerokeratitis 
Explanation: All the given options can occur in herpes zoster keratitis. Sclerokeratitis is least common, therefore the answer of choice.

Herpes zoster ophthahniclis has the following symptom
Ptuictate epithelial keratitis - 50%
Pseudodendritic keratitis - 50%
Anterior stromal keratitis - 40%
Endothelitis - 34%
Serpiginous ulceration - 7%
Scleral keratitis - 1 %

The corneal vascular endothelium is a favoured site of the attack and acute endothelial cell loss is common during herpes zoster heratouveitis.