What is Trataka (Candle Gazing)?

2024

Finding: This 2024 review gathered 16 studies on trataka, the practice of gazing steadily at a candle flame or small point and then holding the after-image with closed eyes. Across those studies, regular practice was linked to sharper focus, steadier heart rhythm, better emotional control, and a greater sense of mental relaxation, which fits the idea that giving your attention a single fixed target helps settle both mind and nervous system. For someone taking it up, that suggests trataka may be a useful way to train concentration and unwind, but the authors are clear that the evidence is still early: most studies were small, designs varied widely, and long-term effects have not yet been confirmed, so treat these as promising rather than settled benefits.

n = 30

Finding: In this small study of 30 healthy adults aged 25 to 40, the ability to detect rapid visual flicker (a measure of how quickly the eyes and brain process what they see) rose slightly right after a session of trataka, from about 37.4 to 38.7 flickers per second, while a comparable non-practice session showed no such change. In everyday terms, a short spell of candle gazing may leave your visual attention feeling a little sharper immediately afterward. This was a one-off measurement in a small group, so it points to a brief perceptual lift rather than a lasting change, and it says nothing about eyesight or vision correction.

n = 30

Finding: In this small experiment, 30 healthy young men completed a demanding attention task both right after a session of trataka and after a control session, and their scores were noticeably better immediately following the candle-gazing practice. That points to a short-term sharpening of focus and mental flexibility, the kind of clearer, more attentive state many practitioners report after a few minutes of steady gazing. Keep in mind that this was a one-off, immediate effect measured in a small group of young men, so it tells us the practice may prime attention in the moment rather than proving any lasting boost to thinking.

n = 41

Finding: In this study, 41 healthy young adults completed a memory task after a single session of trataka, after an eye-exercise session, and at baseline, and their scores on remembering and reproducing sequences of positions climbed noticeably higher right after the trataka session. Candle-gazing beat both plain eye exercises and their starting scores, while eye exercise on its own produced no real change, which points to the focused-attention quality of trataka rather than eye movement alone doing the work. For someone practising, this suggests a short trataka session may sharpen short-term and spatial memory in the moment. Keep in mind this was a small study measuring an immediate, one-off effect in healthy adults around age 23, so it does not tell us whether the practice builds lasting memory gains over time.

n = 503

Finding: In a single-group trial with 503 healthy adults, heart rate and breathing rate dropped and blood-oxygen levels rose immediately after a session of trataka candle gazing, a pattern the researchers linked to the body shifting into a calmer, more relaxed state. For someone trying the practice, this hints that even a short session may help settle the nervous system in the moment. Because everyone in the study did the practice with no comparison group to measure against, these results show what changed alongside trataka rather than proving the practice alone caused the calming effect.

n = 60

Finding: In this controlled trial, 60 adults (ages 52–67) with type 2 diabetes and high-pressure open-angle glaucoma either added one month of daily candle-flame gazing (Jyoti-Trataka) to their usual medication or stayed on medication alone. Those who practised showed lower eye pressure, along with reductions in blood pressure, breathing rate, pulse, and fasting blood sugar, while the medication-only group saw no meaningful change. For someone managing these conditions, this points to trataka as a possible calming add-on to standard care, not a substitute for it. Keep in mind the study was short, small, and specific to diabetic glaucoma patients, so anyone with an eye or metabolic condition should practise alongside, and with the guidance of, their medical treatment.

n = 300

Finding: In a randomized trial with 300 IT professionals struggling with screen-related eye strain, two weeks of daily trataka noticeably lowered self-rated visual fatigue compared with a group that did nothing. A separate cold eye pack worked just as well, and the two produced similar results, so trataka helped but did not outperform that simpler option. If your eyes feel tired from long hours at a screen, this suggests a short candle-gazing routine may bring some relief, though the study relied on people's own ratings over just fourteen days rather than longer-term or objective eye measurements.

n = 30

Finding: In this study, 30 healthy men in their twenties and early thirties showed a shift toward a calmer nervous system after a session of trataka: their heart rate and breathing slowed, and the balance of their heart-rate variability tipped toward the "rest and recover" side, the same pattern often seen during meditation. A comparison session without the practice showed no such change, which points to trataka itself rather than simply sitting still. Because this was a small, one-session study in young healthy men, it is an encouraging early signal rather than proof the practice will steady everyone's nervous system, but it does suggest that focused candle gazing may leave you feeling physically calmer.

2023

Finding: This review pooled six studies of glaucoma patients and found that steady gazing practices like Jyoti-trataka, along with some slow yogic breathing techniques, lowered pressure inside the eye, while head-down inversion postures tended to raise it; three of the strongest trials showed bigger pressure improvements in the yoga groups than in controls. For someone with glaucoma, that hints candle or point gazing may fit into a broader routine aimed at protecting the eyes, but it should never replace prescribed treatment. Keep in mind the studies were small and varied in quality, and they tested yoga as a mixed package, so the benefit can't be credited to trataka on its own. If you have an eye condition, check with your doctor before adding practices, and avoid inverted poses.

n = 29

Finding: In this study, 29 adults living with insomnia practised trataka daily for 10 days, and afterward they scored lower on a standard insomnia measure and reported better overall sleep quality, including how quickly and how deeply they slept. For someone struggling to wind down at night, this hints that a short, focused gazing practice over a couple of weeks may take the edge off restless sleep. Keep in mind the trial was small and had no comparison group, so we can't be sure the practice alone caused the change; treat it as an encouraging early signal rather than a proven fix for clinical insomnia.

2022

Finding: In a randomised trial with glaucoma patients (at least 30 per group), a yoga program that included a modified form of trataka was added to standard medical treatment and compared with standard treatment alone. Eye pressure did drop within the trataka group over four weeks, but there was no meaningful difference between the two groups in eye pressure, stress hormone levels, or quality of life, and the researchers concluded the eye exercises should not be relied on to manage raised eye pressure. If you have glaucoma, this suggests trataka may be a pleasant addition to a routine but is not a substitute for prescribed care, and larger studies are still needed before any firm claim can be made.

2004

Finding: This study compared eye blood-flow and pressure measurements in people with a common form of glaucoma against people with healthy eyes, and it did not test candle gazing or any meditation practice directly. The one heart-related difference it reported was not statistically reliable, meaning the numbers could easily have come up by chance. Because the work focused on diagnosing an eye condition rather than on the effects of a wellness routine, it offers no usable evidence about whether Trataka helps or changes anything for a practitioner.