Written and maintained by CASRAI Editorial Board
Last updated
General product information only, not medical advice. Follow your eye care professional and the instructions that come with your lenses and solutions.
Short answer
Contact lens expiration is the date the manufacturer prints on the sealed lens package, and the sterile lens should not be used after it. Four other dates are routinely confused with it: the solution expiration date, the solution discard date, the 3-month case replacement, and the prescription expiration. Each is a separate date with a separate owner.
Definition and scope
For a sealed soft lens, “expiration” means the use-by date printed on its package. This page covers that date, how it differs from other contact lens dates, and what staff handling lens supplies can check. It does not cover fitting, insertion, or treatment of any eye problem; those belong with an eye care professional.
What the date on a blister pack marks
Product labeling shows what a package carries. In the package insert for the Bausch + Lomb ULTRA lens (samfilcon A), included in its FDA premarket approval summary, each sterile lens is supplied in a plastic blister package containing borate buffered saline with poloxamine solution. The container is marked with the manufacturing lot number, the base curve, the sphere, the diameter and the expiration date. The same insert’s symbol key lists “Use By Date (expiration date)” alongside storage temperature, sterilization and batch code symbols.
This is one product’s labeling, not a rule for every brand. Layouts and symbols vary, so the manufacturer’s own insert for the product in hand is the reference.
Contact lens storage: unopened lenses versus lenses in use
Unopened lenses in the blister pack
The pack is the storage container for the sealed lens, and the insert’s symbol key includes a storage temperature symbol. The temperature range itself is product-specific and is printed in that product’s labeling.
Lenses out of the eye and in a case
The same insert says to keep lenses completely immersed in the recommended storage solution when they are not being worn, because prolonged drying will damage lenses. It also says to fill the case with fresh solution every time lenses are stored and never to top off or re-use solution. FDA’s solutions page repeats this: do not top off the solutions in your case, and cases can be a source of bacterial growth.
Five dates that are routinely mixed up
| Date | What it applies to | What the source says | Source |
|---|---|---|---|
| Lens expiration (use-by) date | The sealed lens in its blister pack | Marked on the container with lot number, base curve, sphere and diameter (Bausch + Lomb ULTRA labeling) | FDA PMA summary P170035 |
| Solution expiration date | Unopened lens care solution | “Do not use contact lens solutions that have gone beyond the expiration or discard date.” | FDA, Contact Lens Solutions and Products |
| Solution discard date | Solution once in use | Always discard leftover solution after each use and never reuse lens solution. | FDA, Contact Lens Solutions and Products |
| Case replacement | The storage case | Replace every 3 months or as directed by your eye care professional. | FDA, Contact Lens Solutions and Products |
| Prescription expiration | The prescription, not the product | Set by the state. If none is set, federal regulation sets one year unless the eye care professional finds a medical reason for less. | FDA, Buying Contact Lenses |
The table gives the labels and rules for different objects. The lens date says nothing about how long a prescription lasts, and a valid prescription says nothing about whether a pack is in date. Related guides cover contact lens saline solution and contact lens case replacement in more detail.
Where it matters for clinics and supply rooms
Staff who receive or hand out lenses deal with all five dates above. The sourced points are these.
- The lens date is printed on each package by the manufacturer, so it is read from the package, not worked out from anything else.
- Solutions carry their own expiration and discard dates, and FDA says not to use solutions past either one.
- FDA advises patients to request the manufacturer’s written patient information for their lenses, so each product’s own insert is the document that carries its labeling.
- Soft lenses are regulated by use: under 21 CFR 886.5925 a soft (hydrophilic) lens is Class II if intended for daily wear only and Class III if intended for extended wear, and Class III devices need premarket approval. This regulation classifies the device. It does not state expiration or labeling rules, so product labeling remains the source for dates.
For broader supply planning see the optometry clinic supply checklist and the comparison of daily and monthly contact lenses. The wear schedule is set by the lens type and your eye care professional, and is separate from the printed expiration date.
Common misunderstandings
“The prescription is current, so the lenses are fine”
The prescription expiration and the package expiration are different dates on different things, as the table shows.
“Fresh solution in the case resets the date”
Fresh solution in the case is what the labeling asks for every time lenses are stored. It is a storage step, and it does not change the date printed on a lens package or a solution bottle.
“The solution bottle and the lens pack share one date”
FDA’s instruction to discard solution past its expiration or discard date refers to the solution. The lens package is dated separately by the lens manufacturer.
“Unused solution can be saved”
FDA says to discard all leftover solution after each use, never reuse lens solution, and not to transfer solution into smaller travel containers.
FAQ
What does the expiration date on a contact lens blister pack mean?
It is the manufacturer’s use-by date for the sealed lens. In the Bausch + Lomb ULTRA insert, the container is marked with the lot number, base curve, sphere, diameter and expiration date, and the symbol key labels the use-by symbol “Use By Date (expiration date)”.
Is the expiration date the same as the contact lens prescription expiration?
No. FDA says the prescription expiration is set by the state, with a federal one-year default unless the eye care professional finds a medical reason for less.
How should contact lenses be stored when not worn?
The ULTRA insert says to keep lenses completely immersed in the recommended storage solution and to fill the case with fresh solution each time. FDA says to replace the case every 3 months or as your eye care professional directs. Follow your own product’s instructions.
Sources
- FDA, Contact Lens Solutions and Products, page marked content current as of 01/16/2018; checked 2026-10-30.
- FDA, Buying Contact Lenses, page marked content current as of 10/28/2020; checked 2026-10-30.
- FDA, PMA summary and package insert, Bausch + Lomb ULTRA (samfilcon A), P170035; checked 2026-10-30. One product’s labeling.
- Legal Information Institute, 21 CFR 886.5925, Soft (hydrophilic) daily wear contact lens; checked 2026-10-30.
