Her sight was failing because of cataracts at the time these were written.
I think he'd be in the hills by now, but his father's sight is failing and he has several sisters.
A young boy on the run from a local gang slips into the flat of an old man whose sight is failing.
In both two sons were blessed by a dying father whose sight was failing.
My Teacher has been far from well and now her sight has almost completely failed.
Soon afterward his sight failed, and in 1843 he became totally blind.
For once, the sight of home failed to brighten her spirits.
The sight of him, even then, did not fail to move her both to admiration and to wonder.
But when his sight failed completely, he still had the rudiments of touch.
Most of them, these days, are old and their sight is failing.