How often should I use artificial tears to ensure optimal ocular moisture and prevent discomfort? Is there a recommended frequency that varies depending on individual circumstances or specific conditions? For instance, could environmental factors, such as exposure to air conditioning or prolonged screen time, necessitate increased usage? Furthermore, might variation in artificial tear formulations impact the suggested application rate? If one experiences chronic dryness or irritation, should consultation with an ophthalmologist be sought to tailor a more personalized regimen? Additionally, is it prudent to consider factors such as age or pre-existing health conditions, which might influence the frequency of application? Are there any potential side effects or drawbacks of overusing these lubricating agents that should be taken into account? Should I establish a consistent routine, or is it more beneficial to use them as the need arises? What insights can guide an informed decision regarding the judicious use of artificial tears?