4 Advice to Choose a Tear Tester
4 Advice to Choose a Tear Tester
When selecting a tear tester, consider the following tips to ensure you make an informed decision:
- Understand Your Requirements: Identify the specific type of tear measurement you need, whether it's for eye health, research, or industrial applications. Each context may require a different type of tear tester.
- Compare Features: Different tear testers offer various features such as digital readouts, multiple settings, and advanced sensor technology. Ensure the model you choose has the features necessary to meet your specific needs. For example, the Check now for a wide range of tear testers.
Another option for measuring tear volume is the phenol red thread test. In this test, a thread filled with pH-sensitive dye (tears change the dye color) is placed over the lower eyelid, wetted with tears for 15 seconds, and then measured for tear volume.
- Consider Brand and Reliability: Opt for respected brands known for their quality and accuracy in the industry. Reliable brands often provide better customer support and warranty options.
- Read Reviews and Ask for Recommendations: Before buying, read user reviews on various platforms to gauge real-world performance and reliability. Also, ask colleagues or industry professionals for their recommendations.
Artificial Tears: How to Select Eye Drops for Dry Eyes
I have dry eyes. What should I look for when selecting artificial tears?
Answer From Alaina L. Softing Hataye, O.D.Artificial tears are eye drops used to lubricate dry eyes and help keep moisture on the outer surface of your eyes. Dry eyes can result from:
- Aging.
- Certain medications.
- A medical condition.
- Eye surgery.
- Environmental factors, such as smoky or windy conditions.
Artificial tears are available without a prescription. No single brand works best for every form of dry eyes. You may need to try several different brands before you find one that works best for you.
Besides lubricating your eyes, some artificial tears also promote healing of the eyes. Others work to decrease tear evaporation. Artificial tears also may contain thickening agents. This helps keep the solution on the surface of your eyes longer.
There are two categories of artificial tears:
- Eye drops with preservatives. This type often comes in multidose bottles and contains preservatives that discourage growth of bacteria once the bottle has been opened. The preservatives may irritate your eyes, especially if you have moderate or severe dry eyes.
- Preservative-free eye drops. This type has fewer additives and is generally recommended if you apply artificial tears more than four times a day, or if you have moderate or severe dry eyes. Preservative-free eye drops may come in single-dose vials.
Artificial tears are also available as nonprescription gels and gel inserts. These may cause temporary blurred vision.
If you still don't have relief after trying different products, the next step might be to try one or more artificial tear ointments. These can temporarily cause blurred vision, so you might prefer to apply the ointment just before bedtime.
If you haven't experienced some relief with these efforts, make an appointment with an eye doctor, such as an ophthalmologist or optometrist, who can suggest other treatments.
With
Alaina L. Softing Hataye, O.D.
Cell Instruments are exported all over the world and different industries with quality first. Our belief is to provide our customers with more and better high value-added products. Let's create a better future together.
Additional reading:What Are the Advantages of VTM-01 Vibration Test Machine？
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- Dry eye. American Academy of Ophthalmology. https://www.aao.org/eye-health/diseases/what-is-dry-eye. Accessed Jan. 25, 2021.
- Dry eye. American Optometric Association. https://www.aoa.org/healthy-eyes/eye-and-vision-conditions/dry-eye?sso=y. Accessed Jan. 25, 2021.
- Shtein RM. Dry eye disease. https://www.uptodate.com/contents/search. Accessed Jan. 25, 2021.
- Pucker AD, et al. Over the counter (OTC) artificial tear drops for dry eye syndrome (Review). Cochrane Database of Systematic Reviews. http://www.thecochranelibrary.com. Accessed Jan. 25, 2021.
- Softing Hataye AL (expert opinion). Mayo Clinic, Rochester, Minn. Feb. 4, 2019.
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