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Updated: Jun 13, 2026

Anterior High-Resolution Optical Coherence Tomography in the Diagnosis and Therapeutic Monitoring of Ocular Surface Squamous Neoplasia
Published on: August 9, 2024
Epidemiology and management of ocular surface squamous neoplasia in Tanzania
Godfrey Furahini1, Susan Lewallen
1Kilimanjaro Christian Medical Center Hospital Eye Department, Tumaini University, Moshi, Tanzania.
Purpose:
To estimate the incidence of suspected ocular surface squamous neoplasia (OSSN) by Region in Tanzania and learn where these lesions are treated.
Methods:
We performed an analysis of existing theater records from three Tanzanian referral hospitals from 2006 to 2008 plus a prospective analysis of records from all other eye health workers who remove suspected OSSN outside the referral hospitals over 1 year.
Results:
Approximately 40% of suspected OSSN are operated on outside of referral hospitals. The estimated annual incidence of ocular surface squamous neoplasia in Tanzania was 2.2 per 100,000 persons. Regional incidence rates were significantly correlated with Regional HIV (Human immunodeficiency virus) prevalence (Pearson's r = 0.53, P = 0.03).
Conclusion:
The incidence rate is high, in line with estimates from other East African countries. Management of these cases requires improvement as most patients are still not tested for HIV.
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