Schirmer's test I & II: Dry Eye Screening

[postlink]http://tube.medchrome.com/2013/09/schirmers-test-i-ii-dry-eye-screening.html[/postlink]
[starttext]Indication: Evaluation of dry eye (Measures aqueous tear production)

Types:
1. Schirmer 1 (without anesthetic): measures baseline and reflex secretion
  • function of main lacrimal gland, whose secretory activity is stimulated by the irritating nature of filter paper
2. Schirmer 2 (without anesthetic): measures baseline secretion
  • function of accesory lacrimal glands (the basic secretors)
Materials required: 5 X 35 mm of Schirmer's strip or Whatman filter paper no. 41

Procedure:
  1. The eye is gently dried of excess tears
  2. The schirmer strip is folded 5 mm from one end and kept in the lower fornix at the junction of lateral 1/3 and medial 2/3 (do not touch cornea or lashes)
  3. The patient is asked to close the eyes.
  4. Tears in the conjunctival sac will cause progressive wetting of the paper strip.
  5. After 5 minutes, the filter paper is removed and the distance between the leading edge of wetness and the initial fold is measured, using a millimeter ruler.
Interpretation:
Normal: >15 mm
Mild-moderate Keratoconjunctivitis sicca (KCS): 5-10 mm
Severe KCS: <5 mm
<10 mm is considered abnormal in Schirmer 1 and < 5 mm in Schirmer 2
Causes of KCS:
  1. Idiopathic
  2. Congenial alacimia
  3. Xerophthalmia
  4. Lacrimal gland ablation
  5. Sensory denervation
  6. Collagen vascular disease: Sjogren syndrome, SLE, RA
[endtext]
http://www.youtube.com/watch?v=FX0uS9iMCXMendofvid

2 comments:

Anonymous said...

schirmer II is with anesthetic! not without

Anonymous said...

Uncorrect!Schirmer test II is with anesthetic. Video very good

Respond to this video