Methodological Limitations in “Self-Reported Vision-Related Quality of Life and Functional Impact in Portuguese Patients with Uveitis: A Cross-Sectional Study” [Letter]
Muneeba Iqbal, Abdullah Iftikhar · 2026
Read Methodological Limitations in “Self-Reported Vision-Related Quality of Life and Functional Impact in Portuguese Patients with Uveitis: A Cross-Sectional Study” [Letter] by Muneeba Iqbal, Abdullah Iftikhar (2026) in the Tower of Babel, a free online library of public-domain works preserved in clean, searchable text. No sign-up. The full text is served as a plain-text file at a predictable URL, where text is present: https://antarctic-labs.com/tower-of-babel/pmc-13570613.txt.
Description
Muneeba Iqbal and Abdullah Iftikhar wrote a letter in 2026 raising methodological concerns about a study of vision-related quality of life in Portuguese patients with uveitis, an eye inflammation. Data on this population are scarce, so the study drew interest. The letter writers argue its design limits what it can show.
Their first concern is the online questionnaire format, which left diagnoses self-reported with no clinical check, inviting bias and possible misclassification. They dispute the claim that recruitment through patient groups made verification likely. Their second concern is a stark sex imbalance between the patient and control groups, which could distort comparisons. They urge the authors to state these limits plainly.
Catalog record
| CREATOR | Muneeba Iqbal, Abdullah Iftikhar |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 5 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |