Conclusions
Preseptal cellulitis is a severe infection of the eye which is commonly caused by bacterial organisms but can rarely be viral. Physician should be aware of the various etiologies, as early detection of causative organism can lead to focused treatment with de-escalation of antibiotics, along with appropriate use of topical steroids in cases of viral etiology. A pooled meta-genomic testing with detection of microbial cell-free DNA in plasma can be a useful test in identifying the causative organism early in the disease process.
Acknowledgement : None
Author contributions: SB, DPN, and NS contributed equally in preparing the manuscript and reviewed the literature. GS and RCL critically revised the manuscript.