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Ocular surface squamous neoplasia (OSSN) is a broad pathological entity that includes squamous neoplasm of conjunctival and corneal tissue. These various malignancies include conjunctival intraepithelial neoplasia (CIN), corneal epithelial dysplasia, squamous cell carcinoma (SCC), and mucoepidermoid carcinoma. OSSN diagnosis rests on exfoliative cytology, vital dyes, and imaging in the form of confocal microscopy and anterior segment optical coherence tomography. The medical management modalities are topical chemotherapy (Mitomycin C and 5 fluorouracil), immunotherapy (Interferon alpha 2b), and upcoming drugs, such as antivirals, anti-VEGF, and retinoic acid. Excision biopsy with no touch technique remains the gold standard for managing OSSN. However, surgery can lead to recurrence and unfavorable results in some cases. This article provides insights into the treatment aspects of OSSN with an overview of recent updates. The authors have discussed the current concept regarding the medical and surgical management of OSSN. The authors also dwell upon the recent updates along with the expert opinion. Although surgery remains the gold standard, topical drugs have revolutionized the management of OSSN. Patients should be closely followed up to look for any side effects. Cost, time duration, cosmesis, and side are the remaining major factors in deciding for medical versus surgical therapy.

Current concepts and recent updates in the treatment of ocular surface squamous neoplasia