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Eye Conditions

Photo showing how someone with normal vision might see a dog. The picture is clear and in focus.
Normal vision
Manipulated photo showing how someone with age-related macular degeneration might see a guide dog. There is a large black spot in the middle of the picture.
Age-related macular degeneration
Manipulated photo showing how someone with glaucoma might see a dog. The edges of the picture are black.
Glaucoma
Manipulated photo showing how someone with retinitis pigmentosa might see a dog. Most of the picture is black with a small narrow area in the centre that is clear.
Retinitis pigmentosa
Manipulated photo showing how someone with cataracts might see a dog. The picture is blurry and out of focus.
Cataracts
Manipulated photo showing how someone with diabetic retinopathy might see a dog. The picture is covered in black dots.
Diabetic retinopathy

In New Zealand around 35% of vision loss is preventable.

The five main causes of vision loss are age-related macular degeneration, glaucoma, retinitis pigmentosa, cataracts and diabetic retinopathy. The images on this page give an idea of how someone with these eye conditions might see a dog.

Getting regular eye tests is one of the best ways of preventing vision loss from eye disease. And in many cases, early detection and regular monitoring has meant further vision loss is prevented.

The RNZFB supports the NZ Association of Optometrists' recommendation of eye tests every two years. More often if there is a family history of eye conditions.

Don't accept failing eyesight with age - you should always know the cause. Any change in your vision should be checked.

Eye condition booklets

The RNZFB has produced a series of eye condition information books based on booklets produced by the National Eye Institute -

Age-related macular degeneration

Glaucoma

Retinitis Pigmentosa

Cataracts

Diabetic Retinopathy

Factsheets in English, Māori and the Pacific languages are also available.