A comprehensive clinical examination is the basis for selecting further diagnostic steps:
- General physical examination – including blood pressure, pulse, body weight, height.
- Ophthalmic examination (examination of the eye with a slit lamp, determination of visual acuity and determination of refraction (examination of the refractive properties of the eye); stereoscopic findings of optic disc (area of the retina where the retinal nerve fibers gather and form the optic nerve after leaving the eyeball) and peripapillary nerve fiber layer) – included:
- Color vision tests such as Ishihara test.
- Anomaloscope according to Nagel
- Farnsworth test
- Panel D15 test
- Neurological examination – if there is evidence of a neurological cause.
