A dysfunctional pre-corneal tear film may limit the accuracy of pre-surgical calculations and impact post-operative vision, refractive and patient-reported outcomes after cataract surgery. A decrease in tear secretion or an increase in tear evaporation can result in hyperosmolarity of the tear film.
The purpose of this study is to determine the variability of pre-surgical calculations in normal and hyperosmolar populations presenting for cataract surgery. Its secondary aims include determination of post-operative refractive predictability and visual and patient-reported outcomes in normal and hyperosmolar populations. The results will be linked to ESR 10’s findings to assess how different treatments impact the results of cataract surgery.