Phase 2 Clinical Trial to Evaluate OC-01 Nasal Spray in Subjects With Neurotrophic Keratopathy

Inclusion Criteria: 1. Be at least 18 years of age at Visit 1. 2. Patients with Stage 1 (corneal epithelial hyperplasia/punctate keratopathy) NK in one or both eyes, as defined by the Mackie Criteria. 3. Evidence of decreased corneal sensitivity (≤ 4 cm using the Cochet-Bonnet aesthesiometer) in at least 1 corneal quadrant. 4. Schirmer's test without anesthesia ≥3 mm/ 5 minutes in the affected eye. 5. If a female is of childbearing potential, they must: use an acceptable means of birth control (acceptable methods of contraception include hormonal - oral, implantable, injectable, or transdermal contraceptives, mechanical - spermicide in conjunction with a barrier such as a diaphragm or condom, IUD, or surgical sterilization of partner), and have a negative urine pregnancy test on Day 1. Exclusion Criteria: 1. Have Stage 2 or Stage 3 NK affecting one or both eyes. 2. Have ocular graft versus host disease or Stevens-Johnson syndrome. 3. Have any active ocular infection (COVID-19 conjunctivitis, bacterial, viral, fungal, or protozoal) or active ocular inflammation not related to NK in the affected eye. 4. Be currently receiving autologous serum tears, amniotic membrane, cenegermin, fresh frozen plasma or cord blood derivative tears. 5. Have severe blepharitis and/or severe meibomian gland disease in the study eye.