Mongey Opticians was founded in the early 1930s by Dr. Eamonn Mongey.

The original practice was located at The Mall, Castlebar. An ophthalmologist and later a medical superintendent to 'The Sacred Heart' home, Dr. Mongey played for Mayo, years before his illustrious nephew, also Eamonn, who played in 1950 and 1951.

The firm was continued by his daughter Mary Rose Bourke (nee Mongey) at Ellison Street, near the old Post Office in 1948, and later by her brother Iarla who returned from London in 1962 where he did postgraduate training in orthoptics (non-surgical treatment of squint and other binocular vision defects).

Iarla oversaw the relocation of the practice to its present premises next door to John O’Donnells Pharmacy, Ellison Street in 1988.

Since 2005, Mongey Opticians has been managed by Aine Higgins from Co. Antrim and Damien Brehony from Carrick-on-Shannon, Co. Leitrim. They have refurbished the premises, modernised the layout, re-equipped the consulting rooms, introduced computerised systems and set up a workshop for the manufacturing and repair of spectacles.
 

Mr. Iarla Mongey continues his presence in a part-time capacity.