Commissioned at Montreal on November 26, 1940, she arrived incomplete at Halifax on December 11 and, after working up, left on January 21, 1941, with convoy HX.104 for Sunderland. There she completed on April 16, and proceeded to Tobermory to work up. In May Eyebright was allocated to EG 4 (RN), based at Iceland, whence she sailed on June 12 to join convoy OB.332 for Halifax. She joined Newfoundland Command in June, and for the next five months was employed as escort to convoys between St. John's and Iceland. In November she began a refit at Charleston, S.C., resuming escort duty late in January, 1942, and arrived at Londonderry with her first transatlantic convoy, SC.66, on February 6. In January, 1943, she joined EG C-3, and that July commenced two months' refit at Baltimore, Md., including fo'c's'le extension. Following repairs at Pictou and workups at Bermuda in the summer of 1944, she joined EG W-3, WLEF, and saw continuous service in the western Atlantic until the end of the war, with one further round trip to Londonderry as a temporary member of EG C-5. Eyebright was returned to the RN at Belfast on June 17, 1945, and sold in 1947 for conversion to a whale-catcher. She entered service in 1940 as the Dutch Albert W. Vinke, last appearing in Lloyd's list for 1964-65.
Focsle Extended, Baltimore, MD, 21 Aug 43