The Dry Eye Zone    
FAQ News Dry Eye Encyclopedia About The Dry Eye Zone Contact
 
   
   
Evaporative dry eye
 
IN BRIEF

Dry eye due to rapid evaporative loss of the tear film rather than aqueous deficiency.

 
DISCUSSION

The term evaporative dry eye is often used when making a simple distinction between two general types of dry eye: failure of the lacrimal glands to produce enough aqueous tears, and failure to achieve proper eye "wetting" because an unstable tear film, rapid evaporative loss etc.

Evaporative dry eye is commonly associated with deficiency of the lipid layer of the tear film (which exists to protect the aqueous tears from evaporating too rapidly). This can be the result of blepharitis, meibomian gland dysfunction or related conditions. When the lipid layer is poor, the tear film becomes particularly vulnerable to other adverse conditions such as climactic factors, wind, heating/air conditioning, etc.

The term evaporative dry eye is sometimes used too broadly for all dry eye conditions excluduing aqueous deficiency.

 
ILLUSTRATIONS

 

 
links and references

 

Google
DryEyeZone    Web
 

The Dry Eye Shop

The Dry Eye Shop

Owned and operated by The Dry Eye Company

 
         
   

 

 

 

The Dry Eye Zone home page The Dry Eye Zone home page