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