Optimizing the Ocular Surface With Systane COMPLETE Pre- and Post-operatively in Patients With Dry Eye Planning for Cataract Surgery: An Extension Study of Optimizing the Ocular Surface With Systane COMPLETE in Patients With Dry Eye Planning for Cataract Surgery

Inclusion Criteria (Experimental group ): Cataract patients who participated in the "Optimizing the Ocular Surface with Systane COMPLETE in Patients with Dry Eye Planning for Cataract Surgery" trial (Research Ethics Committee Approval Number: 202311109MIPD) and did not withdraw from the trial midway. Exclusion Criteria (Experimental group ): Patients unwilling to participate in this trial after surgery. Inclusion Criteria(Control group): * Cataract patients aged between 20 and 85 years. * Patients with normal cognitive function who are able to complete the dry eye questionnaire (with - responses recorded by the research team) and are willing to undergo phacoemulsification and intraocular lens implantation under topical anesthesia. Exclusion Criteria (Control group): * Unable to answer the questions in the dry eye survey. * Ocular trauma or ocular surgery in the planned surgical eye, active ocular infection, and obvious abnormalities in ocular surface or eyelid margins other than MGD cause decreased visual acuity other than cataracts. * Dry eye signs: Corneal Fluorescein Staining CFS (+) to exclude any corneal abnormalities or epithelial defect. * Systemic drug use, including tetracycline derivatives, antihistamines, and isotretinoin. * Using dry eye medication at screening stage.