Abstract
References
1.
Friedenwald
(1936 ) Arch. Ophthal ., 16 , 65 .
2.
Maggiori
(1917 ) Annal., di Ottal ., 40 , 317 .
3.
Theobald
(1934 ) Trans. Amer. Ophthal. Soc ., 32 , 593 .