Contains Matlab (R2021a) and Simulink code to support the paper "Understanding accommodative control in the clinic: modeling latency and amplitude for uncorrected refractive error, presbyopia and cycloplegia" by Jenny C. A. Read, Gerrit Maus, Clifton M. Schor. The paper contains no experimental data of its own but this folder contains some files of data digitised from earlier papers. See the paper for a complete account, also the README.txt file in the repository.