SR648

AR CSNB, normal fundus (IA2fiii)

Male

Male

SR648

AR CSNB, normal fundus (IA2fiii)

Male

Male

Highlighted Images

Age at visit: 16 years
OD OS

History

This 16 year old male has had poorer vision in dim light than his siblings since childhood. He has also been very myopic since childhood and is currently wearing -14.00 diopter spectacles. The maximum combined response of the electroretinogram reveals a selective loss of the b-wave.

Pedigree

Age at visit: 8 years
Age at visit: 10 years
Age at visit: 14 years
Age at visit: 16 years
Age at visit: 18 years
Age at visit: 21 years

Diagnosis & molecular findings

Disease Gene Allele 1 variant(s) Allele 2 variant(s) Inheritance mode
AR CSNB, normal fundus TRPM1 Lys18 del18aAGGTGAGTGAGCTTTGCC Tyr72Cys TAT>TGT AR
Gene:
Allele 1:
Lys18 del18aAGGTGAGTGAGCTTTGCC
Allele 2:
Tyr72Cys TAT>TGT
Inheritance:
AR
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