Nesozosterops strenua The robust white-eye (Zosterops strenuus), also known as the Lord Howe white-eye or robust silvereye and locally as the "big grinnell", is an extinct species of bird in the family Zosteropidae.

It was endemic to the lowland forests of Lord Howe Island, east of Australia.

It was a mainly green bird, around 7.6 cm long, with a white belly and yellow throat, which separated it from other species of white-eye.

The robust white-eye built loosely constructed, cup-shaped nests out of palm fibre and dried grasses, which were sometimes found in shrubs overgrown with vines.

Despite its small size, the bird was known to islanders as "big grinnell", to differentiate it from the much smaller but related "little grinnell", or Lord Howe silvereye (Zosterops lateralis tephropleurus), a subspecies of the silvereye.