Materials glossary / Lens coating
Hydrophobic (oleophobic) coating
On the label: Hydrophobic coating · Lens coating
What it is
A top layer that sheds water and fingerprints so the lens cleans with a wipe.
Lens coatings: Layers applied to a lens: anti-reflective, mirror, polarizing film, photochromic dye, scratch-resistant hard coat.
In the research
12 PubMed papers mention it with jewelry, allergy, eyewear or UV; the three most recent:
- Near-Infrared-Induced Hydrophobic Characteristic of Black TiO(2) Coatings Showing Antibacterial and Immunomodulatory Properties · Journal of functional biomaterials, 2026
- Hydrophobic and Luminescent Polydimethylsiloxane PDMS-Y(2)O(3):Eu(3+) Coating for Power Enhancement and UV Protection of Si Solar Cells · Nanomaterials (Basel, Switzerland), 2024
- Layer-by-layer assembly induced strong, hydrophobic and anti-bacterial TEMPO oxidized cellulose nanofibrils films for highly efficient UV-shielding and oil-water separation · International journal of biological macromolecules, 2023
A paper is a paper, not a verdict: titles are listed so you can read them, and a study on one fabric or one filter says little about the piece in your hand.
Other lens coatings
Clasp & Lens describes materials from the public record and does not appraise, grade or test pieces; what a listing states is the supplier's statement. If a piece causes a rash, take it off; a reaction that spreads or blisters is a doctor's question, and sunglasses are no substitute for impact-rated eye protection where that is required.