Consecutive patients presenting for cataract surgery evaluation were identified. Demographics, medical history, slitlamp findings, symptoms, tear matrix metalloproteinase-9 (MMP-9) and tear osmolarity levels were recorded. Patients were considered to have ocular surface dysfunction if any signs or symptoms were elevated or abnormal.
The authors concluded that objective ocular surface dysfunction findings were common among patients presenting for cataract surgery, yet many presented undiagnosed. Clinicians should be aware of this high prevalence and consider screening with tear testing before surgery.