When Vision Fluctuates, Look to the Tear Film First

Dr. Theriot discusses the differences between natural tear film and artificial tears—and why the change in moniker to "lubricating drops" is appropriate.

By
Pamela E. Theriot, OD
May 1, 2026
3 min

Optometric Management

Objective:

To emphasize the importance of tear film stability in visual clarity and propose a rebranding of 'artificial tears' to 'lubricating drops', highlighting the implications for patient care.

Key Findings:

Blinking stabilizes the tear film and enhances visual performance.
Artificial tears can help clear vision during refraction.
HP Guar in lubricating drops aids in corneal protection and epithelial repair.
Natural tears consist of over 2,000 components and are essential for ocular health, highlighting the complexity of tear film composition.

Interpretation:

The article underscores the need to address tear film issues in patients with fluctuating vision and suggests that the terminology used for tear substitutes should reflect their true function.

Limitations:

The article does not provide extensive clinical data to support the rebranding proposal.
Further research may be needed to evaluate the long-term effectiveness of lubricating drops.
There may be a lack of consensus regarding the rebranding of artificial tears.