IRCT20200615047785N1 IRCT 2020-06-25 Jahrom University of Medical Sciences Vice Chancellor for Research effect of vitamin D treatment on the dry eye parameters in 1394-1395 Prevalence of dry eye in vitamin D deficiency patients that referred to the Jahrom Honary Clinic and the effect of vitamin D treatment on the dry eye parameters in 1394-1395 2015-05-23 anticipated 50 Complete https://irct.ir/trial/48959 interventional Randomization: N/A, Blinding: Not blinded, Placebo: Not used, Assignment: Single, Purpose: Treatment. 2 Condition 1: dry eye. Condition 2: Vitamin D deficiency. Intervention group: Visitors to Jahrom University of Medical Sciences' Endocrinology and Ophthalmology Clinic, who also suffer from serum deficiency of 25OHD and dry eye, and the intervention of the present study is The standard treatment for vitamin D (for 8 weeks each week is one 50,000-unit vitamin D tablet from Zahrawi).. Yes - There is a plan to make this available What will be shared: Data that includes the names and surnames of those present in the study, where they live, and their phone numbers will be kept strictly confidential and will not be published. When: Start the access period 6 months after printing the results To whom: Everyoneدر Conditions: If other researchers want to do more research in this area, they will be provided with ethical considerations. Where to obtain: Jahrom University of Medical Sciences How to obtain: The request for data must be sent in writing to the ethics committee of Jahrom University of Medical Sciences. Comments: