Purpose: To identify changes in medical expenditures and health care utilization before after visual impairment onset, then analyze differences according to severity.Methods: Patients aged ≥ 18 years who were registered as visually disabled from 2005 2013 selected using the database registry of National Health Insurance Service. The observation period 3 registration was divided into 6-month units (12 points interest). At each point interest, cost, number outpatient visits, length hospital stay (LOS) analyzed. control group obtained through 1:10 stratification randomization match sex age; individuals via 1:1 propensity score matching for premium quantile residential area.Results: In total, 131,434 patients with disability same non-visually impaired controls included. Compared non-disabled individuals, mean cost visits higher (1.9- 1.4-fold, respectively, p < 0.001); LOS also 3.5 days longer (p 0.001). greater severely than mildly (1.6- 0.5-fold, 12 From months registration, costs increased presence severity disability; uniformly, regardless severity.Conclusions: More severe cases are associated expenditures. Policy intervention is necessary ensure that receive appropriate treatment steady by reducing burden