Diagnostic Groups of Pfohler et al for Melanoma-Associated Retinopathy (MAR)

Description

Pfohler et al used 3 tests to evaluate patients with malignant melanoma for evidence of melanoma-associated retinopathy (MAR). These tests identify abnormalities common in affected patients. The authors are from Saarland University in Homburg/Saar, Germany.

Tests:

(1) scotopic electroretinogram

(2) contrast sensitivity in nyctometry (nycto = dark) with or without glare

(3) visual field measurement

Parameter	Finding	Points
scotopic electroretinogram	normal	0
	abnormal (with reduced b-wave amplitudes below 110µV)	1
contrast sensitivity in nyctometry	normal	0
	contrast sensitivity better than 1:23.5	0
	1:23.5 or worse	1
visual fields	normal	0
	one or more visual defects	1

total score =

= SUM(points for all 3 tests)

Interpretation:

• minimum score: 0

• maximum score: 3

• The higher the score the more likely the patient has melanoma-associated retinopathy.

Total Score	Group Designation	Probability of MAR
0	MS0	very low
1	MS1	some suspicion
2	MS2	moderate suspicion
3	MS3	highly suspicious

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Description

Specialty

ICD-10