Retinitis pigmentosa

Alternative names:

night blindness - disease

Symptoms:

• vision decreased at night or in reduced light
• loss of peripheral vision
• loss of central vision (in advanced cases)

Signs and tests:

Tests determine the integrity of the retina:

• visual acuity
• refraction test
• color defectiveness determination
• muscle integrity evaluation
• pupillary reflex response
• slit lamp examination
• intraocular pressure determination
• retinal examination
• ultrasound of the eye (head and eye echoencephalogram)
• retinal photography
• fluorescein angiography
• electroretinogram (a record of the action currents of the retina produced by visual or light stimuli)