RT Journal Article SR Electronic T1 A Note on the So-called Enlargement of the Blind Spot in Glaucoma JF British Journal of Ophthalmology JO Br J Ophthalmol FD BMJ Publishing Group Ltd. SP 442 OP 444 DO 10.1136/bjo.34.7.442 VO 34 IS 7 A1 P. L. Blaxter YR 1950 UL http://bjo.bmj.com/content/34/7/442.abstract AB