HUMBLE

Hamilton Uveal Melanoma Brachytherapy Long-term Estimator

An AI-Driven Prognostic Tool from the Hamilton Eye Institute

Want to see how HUMBLE works?

Uveal Melanoma Outcome Predictor

Time Horizon (Years): Years into the future you wish to predict outcomes.

Age at Initial Treatment (Years):

Best-corrected visual acuity in LogMAR scale:

BCVA is often expressed on the LogMAR scale (“logarithm of the minimum angle of resolution”). Negative values indicate better-than-normal vision (e.g., -0.3 ≈ 20/10), and higher positive values represent poorer vision. Below is a rough conversion chart between LogMAR and Snellen (in feet):

LogMAR	Snellen (ft)
-0.3	20/10
-0.2	20/12.5
-0.1	20/16
0	20/20
0.1	20/25
0.2	20/30
0.3	20/40
0.4	20/50
0.5	20/60
0.6	20/80
0.7	20/100
0.8	20/125
0.9	20/160

LogMAR	Snellen (ft)
1.0	20/200
1.1	20/250
1.2	20/300
1.3	20/400
1.4	20/500
1.5	20/600
1.6	20/800
1.7	20/1000
1.8	CF 5–6 ft
1.9	CF 3–4 ft
2.0	CF 1–2 ft
2.2	HM
2.7	LP
3.0	NLP

Abbreviations: “CF” = Counting Fingers, “HM” = Hand Motion, “LP” = Light Perception, “NLP” = No Light Perception.

Apex Height (mm):

Basal Diameter #1 (mm):

Basal Diameter #2 (mm):

Largest Basal Diameter (mm): Calculated automatically

Tumor Volume (mm³): Calculated automatically

Cancer Stage (AJCC T): Calculated automatically

This table summarizes the AJCC T Category classification for choroidal and ciliary body melanoma, based on the tumor’s thickness (mm) and largest basal diameter (mm). Our tool automatically assigns a stage (T1–T4) based on these measurements.

Thickness (mm)	Largest Basal Diameter (mm)
Thickness (mm)	≤3.0	3.1–6.0	6.1–9.0	9.1–12.0	12.1–15.0	15.1–18.0	>18.0
>15.0	4	4	4	4	4	4	4
12.1–15.0	3	3	3	3	3	4	4
9.1–12.0	3	3	3	3	3	3	4
6.1–9.0	2	2	2	2	3	3	4
3.1–6.0	1	1	1	2	2	3	4
≤3.0	1	1	1	1	2	2	4

Adapted from the AJCC Cancer Staging Manual, 8th ed.

Tumor Distance to Optic Nerve Head ≤ 1.5 mm?

Yes

Presence of Vitreous Hemorrhage?

Yes

Presence of Bullous Retinal Detachment?

Yes

About HUMBLE