The most serious eye diseases are those that can lead to severe and permanent loss of vision if left undiagnosed and untreated. Glaucoma is one of these, because it is caused by excessively high pressure in the eye, which causes no symptoms and is painless. This gradually destroys the optic nerve, resulting in permanent loss of vision that can lead to blindness. Age-related macular degeneration or AMD, especially in its wet or exudative form, can permanently alter the cells of the retina and cause permanent loss of vision. Retinal detachment, if not diagnosed early enough and operated on in time, can lead to permanent vision loss. Advanced forms of diabetic retinopathy can also lead to permanent vision loss. Infectious keratitis secondary to contact lens wear can be a serious infection of the cornea, leading to permanent loss of vision. Consult your ophthalmologist in Geneva at the slightest symptom. Dr Bela and her team are available to test your vision and take care of your visual health.