Open labelled Controlled randomized clinical trail to assess the efficacy of Bibhitakadi Ghruta in Timira W.S.R.to Simple Myopia

INTERVENTION: CONDITION: Health Condition 1: H521‐ Myopia PRIMARY OUTCOME: To study the efficacy of classical drug Bibhitakadi Ghruta on visual acuity.Timepoint: 4 weeks SECONDARY OUTCOME: 1.To compare efficacy of Bibhitakadi Ghruta & Saptamruta Loha in Timir w.s.r.to simple myopia. ; 2.To study effect of Bibitakadi Ghruta on sign & symptoms of simple myopia. ; Timepoint: 4 weeks INCLUSION CRITERIA: 1 Patients having signs and symptoms of Timir Simple Myopia will be selected. 2 Patient from age group 18 years to 40 years will be selected. 3 Patients up to minus 4D power of refraction will be selected. 4 Irrespective of gender, religion, socioeconomic status.