Pterygium is one of the most prevalent pathologies involving cornea which can lead to various vision signs and even reduction in eyesight. No accurate estimate has been reported about the prevalence of pterygium in the Iran country. Hence, this study aimed to evaluation of pterygium prevalence in the Iran by meta-analysis method.

Searching for data of last 11 years (since 2004 to 2015) was conducted using the keywords of pterygium, eye, and Iran in International and domestic indexing servisce and databases included Iranmedex, Scientific Information Database (SID), Magiran, Irandoc, Medlib, IranPsych, Science Direct, , Institute for Scientific Information (ISI), PubMed, and Scopus . The data were analyzed using the meta-analysis method (the random effects model). The disharmony of the studies was investigated using the I2 index. The data were analyzed by the STATA Ver.11 software.

: In 5 studies conducted in Iran with a sample size of 10,838 people between 2004 and 2015 years, the extent of the prevalence was estimated to be 11% (95% CI: 3 to 18%). Also, the prevalence of pterygium in women and men was 18% and 13%, respectively.

According to the published reports from Iran and its comparison with other points in the world, the prevalence of pterygium in Iran is high, especially among women.