Common questions about Tears Naturale (FAQ)
Q: Can Tears Naturale be used with contact lenses?
Official product information describes that the solution is indicated for use with hard contact lenses and artificial eyes. However, if the formulation contains a preservative, regulatory constraints state that soft lenses must typically be removed prior to application, with a mandatory waiting period (e.g., 15 minutes) before reinsertion.
Q: Does Tears Naturale contain preservatives?
Tears Naturale products are available in both preserved and preservative-free options. The preserved multi-dose formulations may contain preservatives such as Polyquaternium-1 (POLYQUAD) or Benzalkonium Chloride (BAK). Preservative-free versions are typically supplied in single-use containers.
Q: What is the purpose of the polyquaternium-1 preservative in some versions?
In formulations where it is included, Polyquaternium-1 (POLYQUAD) is used as a preservative. Its function is to prevent microbial growth and maintain the sterility of the multi-dose eye drop solution throughout its period of use after opening.
Q: What distinguishes the Tears Naturale family of products (e.g., Free, Forte)?
Product formulations and names often vary by region and specific product line. For example, the designation 'Free' indicates a preservative-free formulation. Formulations like 'Forte' may contain different combinations of active lubricants, such as Dextran 70, Hypromellose, and Glycerin, often alongside a preservative.
Q: Does the formula of Tears Naturale vary much by country?
Yes, product formulations can differ by region and specific product name. Variations are sometimes noted in the type of preservative used (e.g., Benzalkonium Chloride versus Polyquaternium-1) or whether additional lubricating ingredients are included to adjust the solution's viscosity or feel.
Q: Is there a generic alternative to Tears Naturale?
The active ingredients in Tears Naturale, Hypromellose and Dextran 70, are included in the FDA's Monograph for Ophthalmic Demulcents. This classification means that similar products with the same core active ingredients may be available under different brand or generic names used for the same purpose.
Q: Why are there different active ingredients listed for similar products sometimes?
The FDA's classification of Ophthalmic Demulcents includes several different types of lubricating ingredients, such as various cellulose derivatives and polymeric compounds. Therefore, products intended for dry eye relief may differ in their specific active ingredients while all being officially recognized as ocular lubricants.
Q: Why do some people say Tears Naturale feels thicker than other drops?
The sensation of thickness is related to the solution’s design. The active ingredient, Hypromellose, is a viscosity-enhancing agent. This means it is designed to increase the thickness of the liquid on the eye's surface to prolong the retention time.
Q: What is the consistency of Tears Naturale like?
The consistency is that of a viscosity-enhanced solution. It is designed to be thicker than water due to the polymer content, which helps it adhere to the eye's surface for a sustained duration of action.
Q: Can Tears Naturale be used for eyes irritated by dust or wind?
According to official uses, the product is indicated for the temporary relief of irritation and discomfort caused by dryness of the eye or due to exposure to environmental factors such as wind or sun.
Q: Does the relief from Tears Naturale last for a specific number of hours?
The product is indicated for the temporary relief of dry eye symptoms. Regulatory dosing frequency is generally described as being as needed. Regulatory information indicates the duration of relief is not defined by a specific number of hours.
Q: Is it possible for the eyes to become reliant on Tears Naturale?
Official documentation describes the primary active ingredient, Hypromellose, as a pharmacologically inert substance. There is no information in regulatory safety documents that indicates a physical reliance or dependence from its typical use as a topical ocular lubricant, due to the active ingredient being pharmacologically inert.
Q: Is Tears Naturale meant for short-term or long-term use?
The medicine is used for the temporary relief of dry eye symptoms, which itself is often a chronic condition requiring ongoing management. Official research supporting the use of this type of lubricant consists primarily of trials with limited follow-up durations, meaning long-term effects are not fully established.
Q: Is it common to feel a slight burning sensation after using Tears Naturale?
Official safety information lists ocular discomfort as a common side effect and eye irritation as uncommon. Transient sensations such as mild stinging or burning have been reported with the use of ocular lubricants.
Q: Does using Tears Naturale affect how my eyes feel the next day?
Side effects are generally transient and temporary. However, the product labeling lists dry eye (residual) and ocular discomfort as common possible effects, which may be noticeable during use or afterward.
Q: Is it normal to have crusty eyelids after using Tears Naturale overnight?
Official summaries of adverse effects for ocular lubricants have included crusting of eyelids and eye discharge as possible, though generally uncommon, side effects. If this effect persists or worsens, product labeling advises that use should be discontinued and medical consultation sought.
Q: Can I use Tears Naturale if I have glaucoma?
Official information on the active ingredient notes that the presence of glaucoma (or a history of it) may potentially worsen the condition. Official information indicates that patients with glaucoma or related conditions should seek advice from a healthcare professional prior to use.
Q: Can Tears Naturale be used after eye surgery?
Hypromellose (the active ingredient) is used in various ophthalmic contexts, including as a surgical aid in some procedures. However, the use of the topical lubricant formulation after eye surgery is a clinical decision. This matter should be discussed with a healthcare professional overseeing post-operative care.
Q: What is the recommended storage temperature for Tears Naturale?
The product should be stored at a controlled room temperature, typically between 15 C to 30 C (59 F to 85 F). To maintain product stability and effectiveness, the product is directed not to be frozen.
Q: What are the inactive ingredients in Tears Naturale?
Inactive ingredients commonly include a preservative (e.g., Polyquaternium-1 or Benzalkonium Chloride) and various salts such as potassium chloride, sodium chloride, and boric acid. These ingredients are included to adjust the solution’s pH and osmolarity, making it compatible with the natural tear film.
Q: What is the difference between Tears Naturale and lubricating eye ointments?
Tears Naturale is formulated as a sterile ophthalmic solution (a liquid drop). Eye ointments are a different, semi-solid dosage form with a greasy consistency. Regulatory guidance for administration requires that any eye ointments should be applied at least 5 minutes after the drops to prevent the thicker ointment from interfering with the drops’ action.
Q: Does Tears Naturale help with eye irritation from screens?
The medicine is intended to relieve discomfort due to the dryness of the eye. Clinical information indicates that sustained visual attention, such as when using digital display monitors, can be a factor contributing to eye dryness.
