Islam, Qamar Ul, et al. “HERPES ZOSTER OPHTHALMICUS – ACUTE OCULAR MANIFESTATIONS AND ROLE OF ORAL ACYCLOVIR: Herpes Zoster Ophthalmicus”. Pakistan Armed Forces Medical Journal, vol. 59, no. 1, Mar. 2009, pp. 90-94, https://pafmj.org/PAFMJ/article/view/2055.