ReviewVision (Basel, Switzerland)2026
Epidemiology of Keratoconus in India: A Systematic Review and Meta-Analysis of Indian Study Populations.
Review in Vision (Basel, Switzerland), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
1 citing paper in PubMed.
- Aflibercept 8 mg for diabetic macular edema and neovascular age-related macular degeneration: an italian expert consensus paper.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2026Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
(1) Background: To synthesize available evidence on the prevalence of keratoconus (KC) reported in Indian study populations and describe its demographic distribution. (2) Methods: PubMed, Embase, and Scopus were checked using free text and controlled vocabulary. A random-effect meta-analysis of pooled prevalence and its 95% confidence intervals (CIs) for KC among study participants recruited in India was conducted using exact binomial distributions and the Freeman-Tukey double-arcsine transformation. To identify potential sources of variability, we conducted subgroup analyses by dividing the data by geographic region, KC assessment, and study population. The methodological quality of each study was assessed using the Newcastle-Ottawa scale (NOS). Evidence quality was evaluated using the GRADE system. (3) Results: Across included studies, the total number of KC cases was 16,164, and sample sizes ranged from 152 to 2,384,523 participants. Prevalence estimates varied markedly across studies, reflecting substantial heterogeneity in study design, diagnostic criteria, and population characteristics. Most studies were conducted in high-risk clinical settings, limiting generalizability to the general population. Subgroup analyses showed no significant differences by geographic region or diagnostic modality (
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Registered trials
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