Aerobic exercise lowers eye pressure, for a whileEmerging evidence
Across 10 studies, one session of aerobic exercise lowered eye pressure, almost twice as much in people who weren't active as in people who were. In 9 inactive people suspected of having glaucoma, 3 months of aerobic training lowered eye pressure by 20%, but it went back up within 3 weeks of stopping; the study was small and had no comparison group. A review of 15 studies in people with glaucoma found the longer-term effects varied. Walking at a slow or fast pace didn't raise eye pressure in 21 people with glaucoma.
Sources 3, 4, 20, 21
Does being active protect your sight? The studies disagreeMixed evidence
In 141 people with glaucoma wearing activity trackers, about 5,000 more steps a day went with roughly 10% slower loss of side vision, and in 80 people followed for about 5 years, more activity predicted slower loss. In 9,519 US adults, people who met the activity guidelines were about half as likely to develop glaucoma. But in about 94,000 people in UK Biobank, and in a US study of 266 people with glaucoma, activity wasn't linked with glaucoma. These studies can't show cause and effect, and a 2026 review calls the link likely but unproven.
Sources 5, 22, 23, 24, 25, 26
Head-down positions raise eye pressureEmerging evidence
In 10 people with glaucoma and 10 without, held for 2 minutes, eye pressure rose within a minute in all four poses tested: by about 75% in downward dog, 50% to 60% in a standing forward bend, and about 25% to 33% in plough and legs up the wall, and it fell back within 2 minutes of sitting up. Glaucoma and healthy eyes rose alike. A headstand doubled eye pressure in 75 yoga practitioners for as long as it was held, and hanging upside down raised it from 14 to 36 mmHg (millimetres of mercury) in 16 volunteers.
Sources 6, 7, 27
Whether short rises harm glaucoma isn't knownMixed evidence
The studies measured eye pressure for minutes, mostly in healthy young adults, not glaucoma getting worse over years. A pilot study of 28 people suspected of having glaucoma found that responses to lying head-down helped predict later nerve loss, and the American Academy of Ophthalmology (AAO) describes one woman whose glaucoma stopped getting worse when she gave up 20-minute daily headstands. The Sight Advice service says it's not known whether these short rises cause problems in the long term, so the advice to limit them is a precaution.
Sources 28, 1, 29, 8, 9
Lifting and holds raise eye pressure during the effortEmerging evidence
A review of 34 studies in healthy adults aged 55 or under found eye pressure rose during resistance exercise, by up to about 29 mmHg, more with big movements such as squats and leg presses, heavier loads, longer sets and a held breath, and it settled within about a minute. Holding the breath in the bench press roughly doubled the rise (4.3 against 2.2 mmHg), and heavy leg presses raised it by 26 mmHg on average in 24 young adults. Leg holds raised it too, and in 25 people with glaucoma, holds raised it less than in people without, and it settled quickly.
Sources 9, 10, 30, 31, 32
Swimming gogglesEmerging evidence
In four lab studies, wearing goggles raised eye pressure by about 3 to 10 mmHg for as long as they were worn, more with smaller goggles and tighter straps, and it fell back once they came off. None measured people while swimming. Glaucoma UK advises larger goggles, especially after a trabeculectomy.
Sources 19, 33, 34, 35, 1
Glaucoma and fallsStrong evidence
In England, 90,177 people with glaucoma had about 38% more falls and 31% more fractures than people of the same age and sex without it. In a US study of 230 people with glaucoma or suspected glaucoma, 45% fell within a year, and more side vision loss meant more falls per step walked. Most falls happened in or around the home, from tripping or slipping, and balance is poorer with side vision loss.
Sources 11, 36, 37, 38, 39
Exercise prevents falls in older peopleStrong evidence
Across 108 trials in older people living at home, exercise cut the rate of falls by 23%, and balance and functional exercises by 24%. The World Falls Guidelines recommend balance and functional exercise 3 or more times a week, made harder over at least 12 weeks. No falls prevention trial has been done in glaucoma itself; the trials so far are small pilots.
Sources 12, 13, 40, 41
Treatment protects sight; exercise isn't a substituteStrong evidence
Eye drops, laser and surgery lower eye pressure and are what slow glaucoma down, and Glaucoma UK says there is no substitute for them. In a trial of 90 people with glaucoma, 21 days of mindfulness meditation lowered eye pressure (from about 19 to 13 mmHg), and slow yogic breathing lowered it in small trials, but these are early findings and never a reason to stop your drops.
Sources 2, 14, 1, 42, 43