Vision
Myopia Progression
Myopia progression is a vision-health outcome concerned with whether measures linked to myopia change over time. In this context, it involves spherical equivalent refraction (SER) and axial length (AL), rather than choroidal changes alone.
Explore information focused on myopia progression and its place within vision health.
This list shows research findings, not treatments. Nothing here replaces medical care. If you have this condition, talk to a doctor.
What may help
What studies found for each option, best evidence first.
2 options:1 some evidence1 no benefit found
Red Light Therapy (Photobiomodulation)practiceSome evidence it helpsSize of effect: Not known
Some human studies found a benefit. More research could change this.
All 2 studies with a clear result found a benefit.
A pooled analysis of 41 randomized trials reported that repeated low-level red-light therapy slowed axial length elongation and spherical equivalent progression compared with control. A separate analysis of 9 randomized trials also reported reductions in both measures.
Open the Red Light Therapy (Photobiomodulation) pageAlternate Nostril Breathing (Nadi Shodhana)practiceNo benefit found
Studies looked for a benefit and did not find one.
The one study found no benefit.
A randomized controlled trial involving 60 people found that 3 months of yoga therapy did not reduce changes in visual acuity or clinical refraction; only associated symptoms improved.
Open the Alternate Nostril Breathing (Nadi Shodhana) page
The expert view shows every study, dose protocol and source.
What may help
Interventions recorded as helping with this condition2 listedMost likely to help, from the evidence we have
- →PracticesRed Light Therapy (Photobiomodulation)CertaintyMediumSourceMeta-analysis
A pooled analysis of 41 randomized trials reported that repeated low-level red-light therapy slowed axial length elongation and spherical equivalent progression compared with control. A separate analysis of 9 randomized trials also reported reductions in both measures.
Who was studied
- People with a condition
- Myopia Progression
Open Red Light Therapy (Photobiomodulation)Study result
Network meta-analysis of 41 RCTs showing RLRL significantly slows axial length elongation and spherical equivalent progression compared with control.
Very low probability(1)
- →PracticesAlternate Nostril Breathing (Nadi Shodhana)CertaintyVery lowSourceClinical
A randomized controlled trial involving 60 people found that 3 months of yoga therapy did not reduce changes in visual acuity or clinical refraction; only associated symptoms improved.
Open Alternate Nostril Breathing (Nadi Shodhana)Who was studied
- People with a condition
- Myopia Progression
What to avoid
Interventions recorded as making it worseNothing in this library is currently recorded as making Myopia Progression worse. Coverage is partial, and absence here is not evidence of safety.
How to read the evidence
Evidence tier — overall strength of the evidence for the whole compound
- StrongWell established — backed by strong, consistent human research.
- ModerateSome genuine support, but mostly from small or lower-quality studies. Promising, not proven.
- PreliminaryEarly-stage evidence — a promising hypothesis, not an established effect yet.
- LimitedVery limited evidence — treat this as a hypothesis, not proof.
- InsufficientNot enough good evidence to draw conclusions yet.
Certainty — how sure we can be that the effect is real
- Very highVery sure — strong, consistent evidence
- HighFairly sure — consistent evidence from good studies
- MediumModerately sure — new studies could change this
- LowNot sure — little or mixed evidence
- Very lowVery unsure — almost no usable evidence
Source — where the data comes from
- Meta-analysisPooled analysis of many trials — the strongest evidence
- RCTRandomized controlled trial — a strong human study design
- ClinicalA human clinical study
- Reference knowledgeFrom general health-science or pharmacology references, not a study of this exact claim
- Animal researchStudied in animals, not humans
- Community reportsAggregated user reports — anecdotal signal, not evidence
- TheoreticalMechanism-based reasoning, not yet tested
Study grade — quality of each underlying study (A best, D weakest)
- AHigh-quality — strong, consistent human trials
- BGood — solid evidence with some limitations
- CModerate — limited, small, or mixed-quality studies
- DWeak — preliminary, indirect, or animal-only
Confidence — how strongly the sources back a finding
A 0–100 score from study quality and agreement
Most supplement evidence is graded C–D. Read it as preliminary signal, not proof.
Full write-up
What is it
Myopia progression is a vision-health outcome concerned with whether measures linked to myopia change over time. In this context, it involves spherical equivalent refraction (SER) and axial length (AL), rather than choroidal changes alone. This distinction matters because an intervention may affect choroidal thinning without producing significant changes in SER or AL. The outcome should therefore be interpreted separately from changes in choroidal thickness.
Evidence-backed options
Lutein was studied as a lutein ester supplement over six months. During that period, supplementation was associated with suppression of choroidal thinning, but there were no significant changes in spherical equivalent refraction (SER) or axial length (AL) compared with the control group.
The finding therefore relates to a structural eye measure rather than a demonstrated change in the refractive or eye-length outcomes used to assess myopia progression. The information available does not establish how quickly any effect appeared; six months is the duration examined. It also does not show whether the findings apply to particular age groups, baseline myopia levels, or other health statuses, because the studied health status was not specified.
These results are best interpreted as limited to the outcomes and timeframe examined, not as confirmation that lutein prevents or reverses myopia progression. A clinician can help place this evidence in the context of an individual medical situation.