An interesting piece of recent American research has compared the slightly higher pressures in the colder months compared with warmer months.
Also that pressures are lowered with dynamic exercise like jogging and cycling but probably not with weight lifting.
I found it interesting that dry eyes tend to be worse in the winter months which may lead to increasing pressures.
Medics often say that pressures will vary over 24 hours, and I think that they tend to be higher in the morning, just the opposite to Blood pressure recordings.
It is a very long article but bits are very good. Thank goodness people are gradually understanding Glaucoma.
Reading the Glaucoma UK magazine always gives me hope as they always have positive news and research.