PURPOSE: The pathogenesis of pseudoexfoliation syndrome (PEX) remains unknown. An infection, possibly viral, is one of the proposed pathogenetic mechanisms. This study examines the presence of herpes simplex virus (HSV) and varicella-zoster virus (VZV) in iris and anterior capsule specimens of PEX and non-PEX patients. METHODS: Iris and anterior capsule specimens were obtained from 64 patients with PEX (study group, SG) and 61 patients without PEX (control group, CG). The presence of HSV and VZV DNA was evaluated with a polymerase chain reaction (PCR). RESULTS: Herpes simplex virus type I was detected significantly more often in iris specimens from the SG (13.79%), compared to those from the CG (1.75%). Varicella-zoster virus DNA was not detected in any of the examined specimens. CONCLUSION: Results imply a possible relationship between HSV type I and PEX, although no aetiological role of HSV infection in PEX pathogenesis can be established. Results also advocate against any association between VZV and PEX.
PURPOSE: The pathogenesis of pseudoexfoliation syndrome (PEX) remains unknown. An infection, possibly viral, is one of the proposed pathogenetic mechanisms. This study examines the presence of herpes simplex virus (HSV) and varicella-zoster virus (VZV) in iris and anterior capsule specimens of PEX and non-PEX patients. METHODS:Iris and anterior capsule specimens were obtained from 64 patients with PEX (study group, SG) and 61 patients without PEX (control group, CG). The presence of HSV and VZV DNA was evaluated with a polymerase chain reaction (PCR). RESULTS: Herpes simplex virus type I was detected significantly more often in iris specimens from the SG (13.79%), compared to those from the CG (1.75%). Varicella-zoster virus DNA was not detected in any of the examined specimens. CONCLUSION: Results imply a possible relationship between HSV type I and PEX, although no aetiological role of HSV infection in PEX pathogenesis can be established. Results also advocate against any association between VZV and PEX.
Authors: Sean Mullany; Henry Marshall; Tiger Zhou; Daniel Thomson; Joshua M Schmidt; Ayub Qassim; Lachlan S W Knight; Georgina Hollitt; Ella C Berry; Thi Nguyen; Minh-Son To; David Dimasi; Abraham Kuot; Joshua Dubowsky; Rhys Fogarty; Michelle Sun; Luke Chehade; Shilpa Kuruvilla; Devaraj Supramaniam; James Breen; Shiwani Sharma; John Landers; Stewart Lake; Richard A Mills; Mark M Hassall; Weng O Chan; Sonja Klebe; Emmanuelle Souzeau; Owen M Siggs; Jamie E Craig Journal: Invest Ophthalmol Vis Sci Date: 2022-03-02 Impact factor: 4.799
Authors: Ahmad M Mansour; Anastasios G P Konstas; Hana A Mansour; Abdul R Charbaji; Khalil M El Jawhari Journal: Middle East Afr J Ophthalmol Date: 2021-04-30