Optic Atrophy

Published 22/04/2010

Optic Atrophy
NGS panel

Genes
(full coding
region):		 OPA1, OPA3, TMEM126A
Lab method: NGS panel with CNV analysis
TAT: 6-9 weeks
Specimen requirements: 2-4 ml of blood with anticoagulant EDTA

1 µg DNA in TE, AE or pure sterile water at 100-250 ng/µl
The A260/A280 ratio should be 1.8-2.0. DNA sample should be run on an agarose gel as a single band, showing no degradation, alongside with a quantitative DNA marker.
Ordering information: Go to online ordering or download sample submission form

Targeted regions sequencing

Genes (targeted regions): OPA1
Lab method: Next generation sequencing
TAT: 2-4 weeks
Specimen requirements: 2-4 ml of blood with anticoagulant EDTA

1 µg DNA in TE, AE or pure sterile water at 100-250 ng/µl
The A260/A280 ratio should be 1.8-2.0. DNA sample should be run on an agarose gel as a single band, showing no degradation, alongside with a quantitative DNA marker.
Ordering information: Go to online ordering or download sample submission form

Deletion/duplication analysis of the OPA1 gene

Genes: OPA1
Lab method: MLPA
TAT: 4-6 weeks
Specimen requirements: 2-4 ml of blood with anticoagulant EDTA

1 µg DNA in TE, AE or pure sterile water at 100-250 ng/µl
The A260/A280 ratio should be 1.8-2.0. DNA sample should be run on an agarose gel as a single band, showing no degradation, alongside with a quantitative DNA marker.
Ordering information: Go to online ordering or download sample submission form

Indications for genetic testing:

1. Confirmation of clinical diagnosis
2. Genetic counseling
3. Prenatal diagnosis for known familial mutation

Optic atrophy is characterized by progressive bilateral blindness due to the loss of retinal ganglion cells and optic nerve deterioration. The severity of vision loss varies from nearly normal vision to complete blindness. The age of onset is usually between 4 and 6 years, but optic atrophy rarely causes severe vision impairment in childhood.