AddiPak Saline 0.9% — Preservative-Free 5mL Vials for Scleral Lenses (Box of 100)
SKU: HUD 20059
AddiPak preservative-free saline vials are the trusted choice of scleral lens wearers and optometrists across Canada. Each sterile 5mL vial contains 0.9% sodium chloride solution with no preservatives, no bacteriostatic agents, and no buffers — exactly what your cornea needs behind a scleral lens all day.
Scleral lenses sit on the sclera and vault over the cornea, trapping a fluid reservoir against the eye for hours. That fluid must be preservative-free to avoid corneal toxicity. AddiPak single-use vials eliminate contamination risk because you twist, fill, and discard — no bottle to expire, no cap to contaminate.
Each box contains 100 vials. Most scleral lens wearers use 1–2 vials per day (one per eye for filling, plus rinsing). A single box typically lasts 6–8 weeks of daily wear.
Orders over $150 ship free across Canada.
Read More — Why Scleral Lens Wearers Choose AddiPak
Your optometrist likely recommended AddiPak or a similar 0.9% sodium chloride inhalation saline for filling your scleral lenses. Although originally designed for nebulizer therapy, these unit-dose vials have become the standard among scleral lens practitioners because they are sterile, preservative-free, affordable, and perfectly sized for lens filling.
How AddiPak Compares to Other Scleral Lens Salines
There are three main categories of preservative-free saline used with scleral lenses. AddiPak falls into the unbuffered category, which means it contains only purified water and sodium chloride — nothing else.
Unbuffered saline (AddiPak, Modudose): Lowest cost per vial. No additives. Widely available. The pH is slightly acidic (around 5.5), which for most wearers makes no noticeable difference in comfort. Optometrists have recommended Addipak for scleral lens use for years.
Buffered saline (LacriPure, ScleralFil, NutriFill): Contains sodium borate and boric acid to bring pH closer to 7, matching natural tears. Some patients with severe dry eye, keratoconus, or corneal disease report less stinging and fogging. These cost significantly more per vial.
Bottled saline (PuriLens Plus): More economical per mL for heavy rinsers, but the bottle must be discarded 14 days after opening regardless of how much remains. Higher contamination risk than single-use vials.
For the majority of scleral lens patients, AddiPak delivers the same wearing experience as branded alternatives at a fraction of the cost. Discuss your choice with your eye care provider, especially if you have a history of corneal sensitivity or persistent fogging.
Product Details
- 0.9% Sodium Chloride (NaCl) solution
- Sterile, preservative-free, no bacteriostatic agents
- Single-use 5mL twist-off vials
- Inverted milliliter graduations for accurate dispensing
- Colour-coded red cap (denotes 0.9% concentration)
- 100 vials per box
- Manufacturer: Hudson RCI / Teleflex Medical
- SKU: HUD 20059
Common Uses
- Filling the bowl of scleral and PROSE lenses before insertion
- Rinsing scleral lenses after cleaning or disinfection
- Moistening the lens and plunger during removal
- Diluting respiratory medication in nebulizers
- Flushing minor wound beds
- Relieving dry eyes (preservative-free)
Frequently Asked Questions
Can I use AddiPak saline to fill my scleral lenses?
Yes. AddiPak 0.9% sodium chloride is widely used by scleral lens wearers to fill the lens bowl before insertion. It is preservative-free and contains no bacteriostatic agents, which is essential because the saline trapped behind a scleral lens stays in contact with your cornea for hours. While its labelled indication is inhalation therapy, optometrists across North America routinely recommend AddiPak for off-label scleral lens use. Always confirm with your eye care provider that this saline is appropriate for your specific situation.
Is AddiPak the same as LacriPure or ScleralFil?
Not exactly. AddiPak is an unbuffered saline — it contains only purified water and 0.9% sodium chloride. LacriPure, ScleralFil, and NutriFill are buffered salines that also contain sodium borate and boric acid to bring the pH closer to natural tears (around 7). For most scleral lens wearers the practical difference in comfort is minimal, and AddiPak costs significantly less per vial. However, some patients with dry eye, keratoconus, or sensitive corneas may experience less stinging or fogging with a buffered saline. Your optometrist can help you decide which is best.
How many AddiPak vials do I need per day for scleral lenses?
Most wearers use 1–2 vials per day. You need enough saline to fill the bowl of each lens to the brim (typically 2–4mL per lens depending on your lens diameter) plus a small amount for rinsing. A box of 100 vials generally lasts 6–8 weeks of daily wear for someone wearing lenses in both eyes.
Can I reuse an AddiPak vial or save the leftover saline for later?
No. Once opened, use the vial immediately and discard any remaining saline. Without preservatives, the solution is vulnerable to bacterial contamination as soon as the seal is broken. The pH of unbuffered saline also drops after opening. Reusing opened vials puts you at risk of serious eye infection.
What is the difference between buffered and unbuffered saline for scleral lenses?
Unbuffered saline like AddiPak has a pH around 5.5, which is slightly more acidic than natural tears. Buffered salines use additives (sodium borate and boric acid) to raise the pH to approximately 7. For many scleral lens wearers the difference is unnoticeable. However, patients with compromised corneas, severe dry eye, or a history of corneal disease sometimes report better comfort and less midday fogging with buffered saline.
Why do optometrists recommend AddiPak over branded scleral lens salines?
Cost and availability. AddiPak vials are widely stocked, less expensive, and come in convenient single-use packaging that eliminates contamination risk. Optometry practices across Canada carry or recommend AddiPak because it meets the core requirement — sterile, preservative-free, single-use — at a price point that makes daily scleral lens wear more sustainable for patients long-term.
How should I fill my scleral lens with AddiPak?
Twist off the cap and fill the lens bowl on your insertion plunger until the saline forms a slight dome above the rim. It should look like it is about to overflow. Lean forward with your face parallel to the ground, look straight down into the lens, and bring it up to your eye. The cold sensation is normal — keep pressing gently until you feel light suction. If your vision is blurry or you see a bubble, remove the lens and try again with fresh saline.
Can I use AddiPak to rinse my scleral lenses after cleaning?
Yes. After cleaning your lenses with a multipurpose solution like Boston Simplus or after hydrogen peroxide disinfection with ClearCare, rinse the lens thoroughly with AddiPak saline before filling and inserting. This removes any residual cleaning solution from the lens surface. Some practitioners recommend a separate rinse and fill, which may use 2 vials per lens.
Is AddiPak safe for sensitive eyes?
AddiPak contains no preservatives, no buffers, and no bacteriostatic agents — it is one of the simplest saline formulations available. Most patients with sensitive eyes tolerate it well. However, because it is unbuffered, patients with very sensitive or diseased corneas may notice mild stinging compared to a buffered alternative. If you experience persistent discomfort, speak with your optometrist about switching to a buffered saline like LacriPure.
Do you ship AddiPak across Canada?
Yes. We ship from Calgary, Alberta to all provinces and territories. Orders over $150 qualify for free shipping. Standard delivery is 2–3 business days for commonly stocked products like AddiPak. We maintain large inventory so you never have to worry about backorders.
Can I set up automatic reorders for AddiPak?
Yes. Our subscription service lets you schedule recurring deliveries on whatever interval works for your usage. Skip, reschedule, edit, or cancel anytime. Many of our scleral lens customers set up monthly or bi-monthly deliveries so they never run out.
What size AddiPak vials should I get for scleral lenses — 3mL, 5mL, or 15mL?
The 5mL vials are the most popular for scleral lens use. They provide enough saline to fill one lens and rinse it, with minimal waste. The 3mL vials work if you have smaller diameter lenses and use very little saline per fill. The 15mL vials are better suited for respiratory therapy or patients who need extra saline for extensive rinsing.