PT - JOURNAL ARTICLE AU - David White TI - Dual vision DP - 2017 Aug 01 TA - Canadian Family Physician PG - 653--653 VI - 63 IP - 8 4099 - http://www.cfp.ca/content/63/8/653.short 4100 - http://www.cfp.ca/content/63/8/653.full SO - Can Fam Physician2017 Aug 01; 63