Mastering the Art of Prescribing Autologous Serum and PRP Eye Drops: A Physician’s Guide

Feb 10, 2024
3 min read

Updated: 2 days ago

Clinical Resource for Optometrists and Ophthalmologists

When standard prescription anti-inflammatories like Restasis or Xiidra and tear evaporation barriers like Miebo fail, cornea specialists and optometrists turn to biological eye drops. Derived directly from the patient’s own peripheral blood, Autologous Serum Tears (AST) and Platelet-Rich Plasma (PRP) eye drops represent the gold standard in cellular ocular surface reconstruction.

However, many busy practices hesitate to prescribe biologics due to perceived operational hurdles—in-clinic phlebotomy management, patient blood-draw scheduling, centrifuge maintenance, and cold-chain shipping logistics.

This clinical guide outlines clear concentration protocols, dosing strategies, and how Enrich’s Zero-Burden Practice Workflow eliminates all administrative friction so you can focus solely on clinical diagnosis.

1. Serum vs. PRP: Selecting the Right Biologic Strategy

Choosing between Autologous Serum Tears (AST) and Platelet-Rich Plasma (PRP) depends on whether your patient requires baseline tear-film replacement or active tissue and nerve regeneration:

Autologous Serum Tears (AST)

Primary Composition: Rich in natural immunoglobulins (IgA, IgG), albumin, lysozyme, Vitamin A, and essential tear electrolytes (sodium, potassium, chloride).
Biological Role: Replicates natural human tear composition to provide soothing hydration, anti-inflammatory support, and baseline ocular surface protection.
Primary Indications: Moderate-to-severe Dry Eye Disease (DED), Sjögren's Syndrome, chronic Graft-versus-Host Disease (GVHD), and general ocular surface maintenance.
Supply & Form: 100% preservative-free, delivered in a 12-bottle package (3-month supply).

Platelet-Rich Plasma (PRP) Eye Drops

Primary Composition: Concentrated platelet-derived growth factors, including Epidermal Growth Factor (EGF), Nerve Growth Factor (NGF), PDGF, TGF-β, VEGF, and FGF.
Biological Role: Delivers concentrated cellular signaling peptides for accelerated tissue repair and corneal nerve regeneration.
Primary Indications: Neurotrophic Keratopathy (NK), Persistent Epithelial Defects (PEDs), severe recurrent corneal erosions, and post-surgical recovery (LASIK, PRK, PKP).
Supply & Form: 100% preservative-free, delivered in a 4-bottle package (1-month supply).

2. Clinical Dosing & Concentration Protocols

To achieve optimal biological outcomes, custom concentration calibration is key. Below are standard starting guidelines for clinical practice:

Concentration Selection Guidelines

20% to 50% Concentration: Frequently used for mild-to-moderate dry eye maintenance or when transitioning patients off synthetic anti-inflammatory drops.
100% Full Strength (Recommended for Advanced Disease): For non-healing corneal defects (PEDs), neurotrophic keratopathy (NK), or severe Sjögren’s syndrome, 100% un-diluted concentration is strongly recommended to maximize concentrations of Epidermal Growth Factor (EGF) and Nerve Growth Factor (NGF).
Clinical Note: If a patient yields excellent clinical progress on a specific concentration, maintain that parameter for subsequent refills.

Standard Dosing Regimen

Frequency: Instill 1 drop in affected eye(s) 4 times daily (QID), or as needed for symptomatic flares.
Handling Protocol: Each preservative-free bottle is designed for 7 days of active refrigerated use. Unused bottles must remain deep-frozen until ready for use.

3. The 2-Minute "Zero-Burden" Practice Workflow

Integrating autologous biologics into your clinical practice does not require hiring in-house phlebotomists, purchasing laboratory centrifuges, or managing complex HIPAA shipping logistics.

Enrich operates a fully direct, mobile clinical partnership model designed for zero staff workload:

Write the Order (2 Minutes): Fill out our streamlined referral form (or your practice’s standard clinical requisition) indicating the patient's diagnosis and chosen biologic (AST or PRP).
Fax or Email to Enrich: Send the order to Fax: (855) 300-6595 or Email: inquiry@enrichprp.com. Your clinic's administrative work is now complete.
Mobile Phlebotomy Collection: Our dedicated Patient Coordinators contact your patient directly to schedule a convenient blood draw performed by certified clinical staff in the comfort of their home or workplace across major metro areas—including Los Angeles, San Diego, Las Vegas, Reno, Phoenix —and throughout California, Nevada, Arizona.
Temperature-Controlled Direct Delivery: Freshly formulated, ready-to-use vials are hand-delivered directly to the patient within 24 to 72 hours via strict cold-chain management.

4. Facility Registration & Patient Access Programs

To ensure patients have sustainable access to biological therapy, Enrich provides practice-level pricing structures and hardship assistance:

Zero-Downtime Facility Signup: Once your clinic or office facility is registered with Enrich, all affiliated physicians are automatically cleared to refer patients immediately without completing separate individual accounts.
Preferred Provider Rates: Preferred pricing tiers apply automatically to all patients referred by doctors at registered facilities (for Autologous Serum 3-month supply).
Community Sight Days (Patient Access Program): For high-need or financially underserved patients, write "Community Sight Day" on the requisition form to activate subsidized hardship pricing (for AST).

For more information on comparing prescription dry eye options, review our complete prescription dry eye drop comparison guide.

5. Partner with Enrich Advanced Eye Care Today

Stop letting administrative friction prevent your severe ocular surface patients from receiving gold-standard biological care.

Phone: (888) 687-3332
Fax: (855) 300-6595
Email: inquiry@enrichprp.com
Practice Order & Requisitions: Request physical referral pads for your office directly by contacting our clinical team.

Physician Resources