See more with eye | Introduction | Visual acuity | Conversion steps | Cleaning | Detection | Accepted VA formats / Plausibility checks [#plausibility] | Conversion | Qualitative visual acuity measures | Custom values for qualitative entries: | Examples | recodeye | Counting patients and eyes | Guessing | patient ID columns: | eye variable column: | Counting | Report: | Use in rmarkdown | Reshape eye data | myop | Make myop work | myop under the hood | hyperop | blink | Work under the hood | Names and codes | Tidy data | How do I rename columns in R? | Tips and rules for naming: | Name examples | Reveal common statistics | Calculate age | Important notes | VA conversion chart | Acknowledgements | Resources | References