PT - JOURNAL ARTICLE AU - M. J. Roper-Hall TI - A Singular View AID - 10.1136/bjo.65.7.511-b DP - 1981 Jul 01 TA - British Journal of Ophthalmology PG - 511--511 VI - 65 IP - 7 4099 - http://bjo.bmj.com/content/65/7/511.3.short 4100 - http://bjo.bmj.com/content/65/7/511.3.full SO - Br J Ophthalmol1981 Jul 01; 65