Blurjen,
Ooh, i feel so sad to hear about the bad news happened on a innocent little girl ...
I'm not sure about the scientific name of "Retinoblastoma", But i remember one of my cousin, also removed 1 of her eyeball since young and she is now with a 'fake' eyeball. Hope ur fern's girl also a 1 episode operation. In fact, it is not as bad as we think though, she can still see as per normal human being, trained herself to see thing using only 1 eye, and best, she can still drive .. physically, it can't really tell it is a 'fake' eye ..
Hmm, there is another grandmother believes on her case,
1. Mistery 1: her mother preg while taking the long term contraceptive pill, Means she may forget to take the pill and accident happen just like that.
2. Mistery 2: Her mother is quite a modern woman even in 30+ yrs ago. She dun believe in those non scientific proven saying. She lost her key for one her drawer and she actually just use the screw driver & hammer to 'dig' to force open the drawer ..
The old people blame her for the eye's sickness. Till now, she is guilty and this incident due to her ignorance ... OK, to me, Mistery 2 is out, but the pills in 30-40 yrs ago could cause the fetus damage, as she may be still taking the pill unknowing it the fetus already formed ?