Northern Finland Birth Cohort eye study

INTERVENTION: Screening for eye diseases, mainly glaucoma, with ocular imaging (scanning laser polarimetry, optical coherence tomography, retinal nerve fibre layer photography, scanning laser ophthalmoscopy, stereoscopic optic nerve head photography) 2. Visual field examinations 3. Visual acuity and intraocular pressure. The patients are randomised with respect to age, gender and area of residence. The effect of screening will be compared with no screening after 16 years. CONDITION: Glaucoma ; Eye Diseases ; Glaucoma PRIMARY OUTCOME: The clinical evaluation of glaucomatous damage in the visual fields, optic nerve head and retinal nerve fibre layer will be compared with the group with screening and those without screening, after 16 years SECONDARY OUTCOME: Effectiveness and cost‐effectiveness INCLUSION CRITERIA: Randomized members of Northern Finland Birth Cohort (born in 1966 in the two northernmost provinces in Finland)