Exam

Intraocular Pressure

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Intraocular Pressure, IOP, Schiotz Tonometry, Anterior Chamber Depth

  • Indications
  • Interpretation
  1. Schiotz > 21.5 mmHg c/w elevated Intraocular Pressure
    1. Scale <3.5 (5.5g plunger) recheck with 7.5g plunger
    2. Scale <6.0 (7.5g plunger) recheck with 10g plunger
    3. Scale <8.5 (10g plunger) recheck with 15g plunger
    4. Scale <11.0 (15g plunger)
  • Anterior Chamber Depth
  1. Penlight illumination of anterior chamber
  2. Normal
    1. Illumination from lateral side lights entire iris
  3. Abnormal (increased pressure)
    1. Iris is bowed forward and nasal side is in shadow
    2. Nasal iris is not illuminated