Bilateral cataract surgery
Bilateral cataract surgery has been studied in 2 papers since 2021: 2 observational studies in people. The newest paper, Jan 3, 2025: “Postoperative evaluation of visual and cognitive functions following cataract surgery in patients with age-related cataracts: a prospective longitudinal study”.
2 papers study it4 findingsUpdated
“All time measures improved significantly after cataract surgery (BRT, 815.7(224) versus 647.9(148) ms; NRT, 364.7(91) versus 283.5(44) ms; FTT, 290.8(62) versus 248.6(58) ms; and BPTT, 160.6(96) versus 116.6(72) ms, p < 0.001).”
None of its findings points the other way.
- 2 independent labs in 2 countries
- Humans2
What did studies of Bilateral cataract surgery find?
4Studies of Bilateral cataract surgery measured 4 outcomes; the most studied are cognitive function (1 study), contrast sensitivity (1) and stopping distance (1).
Cognitive function
upin humans1
1 study
Cognitive function
upin humans1
Bilateral cataract surgery improves cognitive function in humans (p < 0.05).
“Additionally, the bilateral surgery group outperformed the unilateral surgery group in cognitive function throughout the follow-up period (p < 0.05).”
Human trialage-related cataractsthroughout the follow-up period
Frontiers in neuroscience
Contrast sensitivity
upin humans1
1 study
Contrast sensitivity
upin humans1
Bilateral cataract surgery improves contrast sensitivity in humans (1.4(0.2) vs 1.6(0.1)).
“Best-corrected visual acuity (BCVA) and contrast sensitivity (CS) improved significantly after surgery (0.25(0.2) versus 0.05(0.05), n = 53, p < 0.001; 1.4(0.2) versus 1.6(0.1), p < 0.001, respectively).”
Human trialelderly drivers with bilateral cataract4 weeksn = 53
Acta ophthalmologica
Stopping distance
upin humans1
1 study
Stopping distance
upin humans1
Bilateral cataract surgery improves stopping distance in humans (22.3(6) vs 19.9(4) m at 50 km/h).
“The calculated stopping distance improved significantly after surgery (22.3(6) versus 19.9(4) m at 50 km/h).”
Human trialelderly drivers with bilateral cataract4 weeksn = 53
Acta ophthalmologica
Brake reaction time
upin humans1
1 study
Brake reaction time
upin humans1
Bilateral cataract surgery improves brake reaction time in humans (815.7(224) vs 647.9(148) ms).
“All time measures improved significantly after cataract surgery (BRT, 815.7(224) versus 647.9(148) ms; NRT, 364.7(91) versus 283.5(44) ms; FTT, 290.8(62) versus 248.6(58) ms; and BPTT, 160.6(96) versus 116.6(72) ms, p < 0.001).”
Human trialelderly drivers with bilateral cataract4 weeksn = 53
Acta ophthalmologica