Indications
1. Glaucoma
2. Iritis
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

Physiologic Intraocular Pressure (C0021888)
Definition (CSP)	pressure of the fluids of the eye against the tunics; produced by continual renewal of the fluids within the interior of the eye.
Concepts	Organ or Tissue Function (T042)
MSH	D007429
English	Intraocular Pressure, Intraocular Pressures, IOP - Intraocular pressure, Ocular Tension, Ocular Tensions, Physiologic Intraocular Pressure
Spanish	presion intraocular
Parent Concepts	Hydrostatic Pressure (C0020309), Exogenous intraocular Fluid (C0493522), Ocular Physiologic Phenomena (C1257823), Measure of globe (C1285697), Duplicate concept (C1274013)
Sources	CSP, LCH, MSH, MTH, SCTSPA, SNOMEDCT Derived from the NIH UMLS (Unified Medical Language System)

Depth of anterior chamber (C0429492)
Concepts	Finding (T033)
English	AC - Anterior chamber depth, ACD - Anterior chamber depth, Anterior chamber depth, Depth of anterior chamber
Spanish	profundidad - camara anterior, profundidad de la camara anterior
Parent Concepts	Duplicate concept (C1274013), Appearance of anterior chamber (C1285705), Measure of anterior chamber (C1285707)
Sources	SCTSPA, SNOMEDCT Derived from the NIH UMLS (Unified Medical Language System)

Schiotz tonometry (C0848285)
Concepts	Diagnostic Procedure (T060)
English	Schiotz tonometry
Spanish	tonometria de Schiotz
Parent Concepts	Indentation tonometry (C0200193)
Sources	SCTSPA, SNOMEDCT Derived from the NIH UMLS (Unified Medical Language System)

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This page was written by Scott Moses, MD. This page was last revised before 5/10/08, prior to consistent tracking of revision date. This page was last published on 6/1/2008. Please send comments and questions to the editor. Contact information may be found on the page About the Family Practice Notebook. These pages are best viewed with Microsoft Internet Explorer 6.0.

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Intraocular PressureAka: IOP, Schiotz Tonometry, Anterior Chamber Depth

Physiologic Intraocular Pressure (C0021888)

Depth of anterior chamber (C0429492)

Schiotz tonometry (C0848285)

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