The average cost of an eye surgery is $ 110 plus the cost of transportation and accommodation. More than 35% of patients will not be able to afford this service. Knowing that health insurance system will not cover this service; CTSOE has been established a system of cross-subsidizing that allows the wealthiest to pay for the less fortunate for their additional comfort services. This system only covers a small portion of patients in need. Outside help is needed to benefit a greater number.