Introduction & Objective: Myopia is the most rampant human refractive error. There are many questions about the effect of fasting during Ramadan on myopia among these patients. Due to lack of enough researches on this topic, we decided to do a study to answer this question. Materials & Methods: This cohort study was done on 102 patients at Ramadan month (2007) referred to Besat hospital of Hamadan city, half being starved the other half no starved. In both groups ophthalmic examinations before and after this month were performed and data were registered.

Results: The myopic changes in starved group were 0.078±0.16 & 0.049±0.16 in right & left eyes respectively. This amounts were 0.088±0.19& 0.110±0.21 for non starved patients. The differences were not statistically meaningful in two groups.

Conclusion: A complete course of fasting in Ramadan doesn't influence myopia.