Ophthalmology
15 calculators available
Corrected Calcium for Albumin
Corrects serum calcium for low albumin levels to assess true calcium status
24-Hour Fluid Balance
Calculates net fluid balance for volume status assessment and fluid management in hospitalized patients
Shock Index
Rapid assessment of hemodynamic status
FRAX® Fracture Risk Assessment
Estimates 10-year probability of major osteoporotic and hip fractures
Adrenal Incidentaloma Evaluation
Guides workup of incidentally discovered adrenal masses based on size and imaging characteristics
Pediatric BMI Percentile
Calculates BMI percentile for children and adolescents (2-20 years) using CDC growth charts
APGAR Score
Assessment of newborn condition at 1 and 5 minutes after birth
IOP Correction for Central Corneal Thickness
Corrects measured intraocular pressure based on central corneal thickness to improve glaucoma assessment accuracy
IOL Power Calculation (SRK/T Formula)
Calculates intraocular lens power for cataract surgery using the SRK/T formula
Diabetic Retinopathy Severity Scale
ETDRS-based classification for diabetic retinopathy with treatment recommendations
Visual Acuity Converter
Converts visual acuity between Snellen (ft/m), decimal, logMAR, and percentage of normal vision
AMD Drusen Risk Score (AREDS2)
Estimates 5-year risk of progression to advanced AMD using AREDS2 simplified severity scale
Glaucoma Risk Calculator (OHTS)
5-year risk of developing primary open-angle glaucoma from ocular hypertension using OHTS/EGPS risk model
Cup-to-Disc Ratio & Neuroretinal Rim Assessment
Interprets optic disc findings including CDR, ISNT rule, and glaucoma suspicion criteria
Dry Eye Disease Severity (DEWS II)
Classifies dry eye disease severity using TFOS DEWS II criteria with treatment step ladder
Keratoconus Amsler–Krumeich Staging
Grades keratoconus severity (Stage I–IV) using Amsler–Krumeich criteria with management pathway
Refractive Error Classification & Lens Prescription Guide
Classifies myopia, hyperopia, and astigmatism severity with spectacle/contact lens recommendations
Anterior Chamber Angle & Closure Risk (Van Herick)
Estimates angle closure risk using Van Herick peripheral anterior chamber depth grading
Humphrey Visual Field Severity (Hodapp–Parrish–Anderson)
Classifies glaucomatous visual field loss severity using HPA criteria from Humphrey 24-2 report
Colour Vision Deficiency Assessment
Classifies colour vision deficiency type and severity based on Ishihara/Farnsworth D-15 findings
Rhegmatogenous Retinal Detachment Risk Assessment
Estimates risk of retinal detachment based on myopia, lattice degeneration, family history, and trauma
Strabismus Prism Dosage Calculator
Calculates prism prescription for horizontal and vertical strabismus with Prentice rule guidance