Photographs of selected eyes from Chernobyl birds.

(a) Blackcap (Sylvia atricapilla), normal – score 0; (b) barred warbler (Sylvia nisoria), normal – score 0; (c) blackcap (Sylvia atricapilla), slight haze in cornea – score 1; (d) barn swallow (Hirundo rustica), significant haze on cornea – score 2; (e) chiffchaff (Phylloscopus collybita), slight haze on cornea – score 1; (f) chiffchaff (Phylloscopus collybita), significant haze on cornea – score 1; (g) barn swallow (Hirundo rustica), significant haze on cornea – score 3; (h) chaffinch (Fringilla coelebs), slight haze on cornea – score 1; (i) chaffinch (Fringilla coelebs), clear eye but deformed eye lids – score 0; (j) tree pipit (Anthus trivialis), significant opacity of cornea – score 2; (k) robin (Erithacus rubecula), significant haze on cornea – score; (l) chiffchaff (Phylloscopus collybita), deformed eye lids, haze on cornea – score 2. All photos captured using an EyeQuick Digital Ophthalmoscope Camera.