Ocular_Hypertension_Treatment_Study_OHTS_Calculator v.1

Ocular Hypertension Treatment Study (OHTS) Calculator identifies patients that may benefit from therapy to lower intraocular pressure (IOP).

Therese Lindberg

therese.lindberg@cambio.se

@CambioCDS

To identify patients that may benefit from therapy to lower intraocular pressure (IOP).

OHTS Score is based on 5 parameters: age, mean intraocular pressure, mean central corneal thickness, mean vertical cup-to-disc ratio by contour, mean pattern standard deviation*. (*2 measurements per eye of: Humphrey full threshold 30-2, SITA Standard 30-2 or 24-2, or loss of variance from Octopus 32-2). Interpretation: OHTS Score 5 year risk of developing POAG Risk - Recommendation 0-6 ≤4.0% Low - Recommend observation every 6 months 7-8 10% Intermediate - Recommend counseling on risks/benefits of treatment versus close observation 9-10 15% Intermediate - Recommend counseling on risks/benefits of treatment versus close observation 11-12 20% Intermediate - Recommend counseling on risks/benefits of treatment versus close observation >12 ≥33% High - Recommend initiating treatment

1. Kass MA, Heuer DK, Higginbotham EJ, et al. The Ocular Hypertension Treatment Study A Randomized Trial Determines That Topical Ocular Hypotensive Medication Delays or Prevents the Onset of Primary Open-Angle Glaucoma. Arch Ophthalmol. 2002;120(6):701–713.

EVALUATION.ocular_hypertension_treatment_study_calculator.v0, OBSERVATION.basic_demographic.v1