If it is true that...

Synthetic glucocorticoids are often given to premature babies, adding to the risk of retinal damage

and

The use of synthetic glucocorticoid hormone is standard in treating very premature babies although it is known to contribute to eye damage

Then it must be true that...

Retinopathy of prematurity has blinded tens of thousands of people

If it is true that...

The use of synthetic glucocorticoid hormone is standard in treating very premature babies although it is known to contribute to eye damage

and

Cortisol-like drugs damage the brain and other organs

Then it must be true that...

Retinopathy of prematurity has blinded tens of thousands of people