ArticleScientific reports2021
Quality of life in keratoconus: evaluation with Keratoconus Outcomes Research Questionnaire (KORQ).
Article in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 1 of them a synthesis that pooled it.
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
19 citing papers in PubMed, 1 synthesis or guideline pooled it, 31 citations in OpenAlex.
- Keratoconus and quality of life: an updated comprehensive review.BMC ophthalmology · 2025Pooled it
- Trends in the Management of Keratoconus in Australia.Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists) · 2026Article
- Article
- Evaluation of Factors Influencing Quality of Life in Keratoconus Patients Using the Keratoconus Outcomes Research Questionnaire (KORQ).Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists) · 2026Article
- Vision-Related Quality of Life in Iraqi Keratoconus Patients: A Comparative Analysis of Surgical and Nonsurgical Interventions.Korean journal of ophthalmology : KJO · 2026Article
- Anterior Segment Eye Diseases and Quality of Life: An Updated Comprehensive Narrative Review.Journal of ophthalmic & vision research · 2026Review
- Impact of contact lens correction on wavefront aberrations and vision quality in keratoconus.Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists) · 2025Review
- Translation, cross-cultural adaptation, and validation of the Norwegian version of the Keratoconus Outcomes Research Questionnaire.Journal of patient-reported outcomes · 2025Article
- Quality of life in patients with progressive keratoconus treated with corneal collagen crosslinking.International ophthalmology · 2025Article
- Impacts of keratoconus on quality of life: a qualitative study.Eye (London, England) · 2024Article
- Simultaneous Muraine Sutures and Excimer Laser-Assisted Penetrating Keratoplasty for Acute Keratoconus.Journal of clinical medicine · 2024Article
- Experiences of keratoconus patients attending public eye care facilities in South Africa.African journal of primary health care & family medicine · 2024Article
- Opportunities for Improving the Long-term Management of Keratoconus Patients.Journal of contact lens research & science · 2024Article
- Quality of life of a sample of people with keratoconus in KSA.Journal of Taibah University Medical Sciences · 2023Article
- The Lifetime Expenditure in People with Keratoconus in Saudi Arabia.Vision (Basel, Switzerland) · 2023Article
- Quality of life and tomography indices in patients with keratoconus.The Journal of international medical research · 2023Article
- Vision-Related Quality of Life in Patients With Keratoconus: A Nationwide Study in Saudi Arabia.Cureus · 2023Article
- Quality of life in patients with keratoconus.Indian journal of ophthalmology · 2022Article
- Vision related quality of life in keratoconus patients with intra stromal corneal ring segments implantation.Oman journal of ophthalmologyArticle
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
9 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
To assess the quality of life of keratoconus patients using the Keratoconus Outcomes Research Questionnaire (KORQ), translated and validated in Portuguese language. The KORQ is the only validated keratoconus specific questionnaire and has a high rating for its psychometric properties. This cross-sectional study enrolled 100 keratoconus patients from a tertiary referral eye hospital between April 2018 and June 2019. Associations between age, sex, allergic conjunctivitis, keratoconus stage, best-corrected visual acuity (BCVA), maximum simulated keratometry (Kmax), steep keratometry (K2), pachymetry, treatments performed, hydrops, and KORQ scores were evaluated using univariate (Wilcoxon test and the Kruskal Wallis test) and multivariate linear regression with stepwise backward modeling. Lower KORQ scores are associated with better quality of life, whereas, higher scores are associated with greater impairment of functional activities and symptoms. Among the 100 patients, mild, moderate, and severe keratoconus were observed in 15%, 46% and 39% of participants, respectively. Univariate analysis showed lower function scores values, with male sex (p < 0.05) and both functional and symptom scores were significantly associated with BCVA < 0.3 (LogMAR) (p < 0.05). Multivariate analysis indicated significantly lower functional scores in individuals with BCVA < 0.3 (LogMAR) (p < 0.001) and those with a history of crosslinking treatment (p = 0.022), while symptom scores were only significantly associated with only BCVA < 0.3 (LogMAR) (p < 0.001). In patients with keratoconus, BCVA in the better eye and history of crosslinkig were factors associated with better quality of life scores using the KORQ.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.