Compare the corneal astigmatism data before and after the use of Systane COMPLETE to evaluate its impact on predicting changes in postoperative residual astigmatism, as well as the effects of using or not using Systane COMPLETE on preoperative and postoperative Ocular Surface Disease Index (OSDI) scores and Non-Invasive Tear Break-Up Time (NITBUT).
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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.
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.