Hypothesis: In patients with dry eye, defined as corneal staining and a reduced tear breakup time, the accuracy of pre-operative biometry and corneal surface HOAs will improve significantly after four weeks of Cequa treatment.~Primary Outcome Measure: Spherical equivalent prediction error of pre-Cequa vs post-Cequa ocular biometry performed for cataract surgery.~Secondary Outcome Measures:~The impact of Cequa treatment on corneal higher order aberrations measured in the central 6 mm of the cornea.~The difference in SPEED questionnaire scores before and 4 weeks after Cequa treatment.~The difference in corneal staining and tear breakup time (TBUT) before and after treatment with Cequa.
The purpose of this study is to examine the effect of Cequa treatment on the accuracy of pre-operative biometry and on corneal higher-order aberrations (HOAs) in cataract patients who have signs of dry eye disease.