Green’s Dictionary of Slang

1. the eyes.

1854		N.Y. Clipper 21 Jan. 3/2: A ranting preacher [...] heard no other conversation [...] but ‘bread basket,’ ‘peeper,’ ‘first knock down,’ ‘stinger in the eye,’ ‘closed his window,’ &c .
1860		Cheshire Obs. 18 Aug. 8/3: Grasshopper [...] got on Panfish’s wuindows completely lettin’ down de blinds.
1873		Sl. Dict.
1890–1904		Farmer & Henley Sl. and Its Analogues.
1895		Crowe Aus. Sl. Dict. 96: Windows, the eyes.
1902		C.L. Cullen More Ex-Tank Tales 38: The most extraordinary pair of blue-gray windows I ever saw in a man’s head.
1933		Ersine Und. and Prison Sl.
1979		‘Iceberg Slim’ Airtight Willie and Me 117: I’m gonna blow out your windows, Pig, for kicks, if you keep pinning me.

2. (US) spectacles.

1904		‘Number 1500’ Life In Sing Sing 254: Windows. Spectacles.
1907		T.A. Dorgan in Zwilling TAD Lex. (1993) 88: ‘Now take it from me,’ whispered the gent with the windows.
1924		G. Henderson Keys to Crookdom 422: Windows. Eyeglasses, googs.
1949		R. Park Poor Man’s Orange 181: Why don’t you take off them black windows?
1968		‘Hy Lit’ Hy Lit’s Unbelievable Dict. of Hip Words 52: windows – Eye glasses.