Blepharitis other diagnostic studies: Difference between revisions
No edit summary |
No edit summary |
||
| Line 20: | Line 20: | ||
On tear break up time (TBUT), blepharitis is characterized by tear film instability and rapid evaporation. | On tear break up time (TBUT), blepharitis is characterized by tear film instability and rapid evaporation. | ||
===Measurement of Tear Osmolarity=== | ===Measurement of Tear Osmolarity=== | ||
Measurement of tear osmolarity is used for diagnosing concurrent [[dry eye syndrome]]. On measurement of tear osmolarity, | Measurement of tear osmolarity is used for diagnosing blepharitis concurrent with [[dry eye syndrome]]. On measurement of tear osmolarity, dry eye syndrome is characterized by the tear osmolarity of 316 mOsm/L or greater. | ||
==References== | ==References== | ||
Revision as of 15:06, 13 July 2016
|
Blepharitis Microchapters | |
|
Diagnosis | |
|---|---|
|
Treatment | |
|
Case Studies | |
|
Blepharitis other diagnostic studies On the Web | |
|
American Roentgen Ray Society Images of Blepharitis other diagnostic studies | |
|
Risk calculators and risk factors for Blepharitis other diagnostic studies | |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: Sara Mehrsefat, M.D. [2]
Overview
Other diagnostic studies for blepharitis include Slit lamp examination, Tear break up time (TBUT), and Measurement of tear osmolarity.
Other Diagnostic Studies
Slit Lamp Examination
Slit lamp examination is currently used for differentiating between anterior and posterior blepharitis. On slit lamp examination, blepharitis is characterized by:
- Meibomian gland Enlargement (posterior blepharitis)
- Waxy secretions at the gland openings (posterior blepharitis)
- Lid margin neovascularization and dilation of existing blood vessels
- Ulcerations along the eyelid margin.
- Corneal nodules
- Corneal margin ulcer
- Superficial corneal pannus
Tear Break Up Time
On tear break up time (TBUT), blepharitis is characterized by tear film instability and rapid evaporation.
Measurement of Tear Osmolarity
Measurement of tear osmolarity is used for diagnosing blepharitis concurrent with dry eye syndrome. On measurement of tear osmolarity, dry eye syndrome is characterized by the tear osmolarity of 316 mOsm/L or greater.