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Map containing Ordnance Survey data (© Crown copyright and database right 2010) showing the combined geographical distribution of referrals (▼) to the two tertiary referral hospitals: Moorfields Eye Hospital, London, UK (circled, L) and the Birmingham and Midland Eye Centre, Birmingham, UK (circled, B). The furthest referral was for Newquay, Cornwall to Moorfields (238 miles).
