Related Subjects
80 and over
Aged
Diseases in Twins
Female
Humans
Iceland
Male
Middle Aged
Monozygotic
Prospective Studies
Twins
Anterior Chamber
Chronic Disease
Exfoliation Syndrome
Genotype
Glaucoma
Infectious Disease Transmission
Intraocular Pressure
Macular Degeneration
Open-Angle
Optic Disk
Refractive Errors
Retina
Risk Factors
Spouses
Vertical
Visual Acuity