My mother has had blurred distant vision for several months. She has had early stage glaucoma for several years, which is being successfully treated with eye drops, and during the past year, she has had every eye test available, including specialist consultations, which have ruled out any physical cause. Although she has had glaucoma for some years, it never affected her vision, and at her most recent consultation a few weeks ago, the specialist was very happy with the pressure and condition of her eyes, which he said had improved. I think her vision problems are caused by stress, especially as her eyesight is sometimes fine, especially if she is looking through a car window, or if she is sheltering underneath an umbrella. My father has vascular dementia, which has become worse over the last few months, and it has been suggested that my mother's vision problems could be caused by anxiety, as she is subject to quite a lot of stress. It has been explained that adrenalin can cause the pupils to dilate, allowing too much light in, which can affect the vision. However, my mother is not convinced, and keeps asking for more checks and eye tests, even though she has had several over the last year. Regardless of how many specialists try to reassure her that her eyes are fine, and her eyesight is good, she won't believe them, and has made yet another appointment with the optician. Can you please tell me if anxiety can cause blurred vision?