Scanning laser polarimetry determined retinal nerve fibre layer thickness Baseline, 6 and 12 months [clinicaltrials_resource:9ae5ec57e4f0406773c3c74ced540d55]

The primary outcome will be difference in retinal nerve fibre thickness at 6 months between affected eye and non-affected fellow eye at baseline between the amiloride and placebo group. An additional measure will be made at 12 months

Scanning laser polarimetry determined retinal nerve fibre layer thickness Baseline, 6 and 12 months [clinicaltrials_resource:9ae5ec57e4f0406773c3c74ced540d55]

The primary outcome will be difference in retinal nerve fibre thickness at 6 months between affected eye and non-affected fellow eye at baseline between the amiloride and placebo group. An additional measure will be made at 12 months