Inclusion Criteria:  Provide written informed consent prior to any study-related procedures being performed. Is male or a non-pregnant, non-lactating female aged 18 years or older. Willing and able to follow instructions and be present for the required study visits. Have an Early Treatment Diabetic Retinopathy Study (ETDRS) Best Correct Visual Acuity (BCVA) of 20/200 or better in each eye. Have an Intraocular Pressure (IOP) between 7 and 30 mmHg. Certified as healthy by clinical assessment. Verbal communication skills adequate to participate. Able to tolerate bilateral instillation of Over-The-Counter artificial tear product based on investigator judgement.  Exclusion Criteria:  Have participated in an investigational study within the past 30 days. Have a contraindication to local anesthetics. Have known decreased corneal or conjunctival sensitivity. Have had ocular surgery in either eye within the past 90 days. Have had an intravitreal injection in either eye within 14 days. Have ocular disease requiring punctual plugs or ocular inflammation. Are currently using a systemic opioid or opiate analgesic or topical NSAID. Cannot withhold their over the counter (OTC) artificial tear lubricant products for one hour preceding or following study medication. Any condition, including alcohol or drug dependency, that would limit the subject's ability to comply with the procedures of the protocol.