Amsler Grid

The Amsler grid is a useful tool to detect vision problems resulting from damage to the macula (the central part of the retina).

Report any irregularity to your eye care professional immediately.

The grid does not replace having your macula tested by an eye care professional, particularly if you are over 50 yrs old or have any risk factors for macular degeneration.

Amsler Grid

How to do it

  1. Cover one eye, then focus on the dot in the centre.
  2. Do any of the lines look wavy, blurred or distorted?
  3. Are there any missing areas or dark areas in the grid?
  4. Don't forget to test
    both eyes.

Dr Dianne Sharp MB ChB, FRACS, FRANZCO Back to About Us


Ophthalmologist at Retina Specialists, Parnell and Greenlane Clinical Centre, Auckland.

Dr Dianne Sharp graduated from Otago Medical School and became a Fellow of the Australian and New Zealand College of Ophthalmology and a Fellow of the Australasian College of Surgeons after training in ophthalmology in Auckland. She undertook a two- year medical retinal fellowship at Moorfields Eye Hospital in London with Prof A C Bird (Ophthalmology) and Prof G B Arden (Electrophysiology).

On returning to Auckland she has worked as a Medical Retina specialist. She has worked with the most current and effective medical therapies, introducing Photodynamic therapy into NZ as treatment for neovascular AMD in 1999 and subsequently and providing intravitreal therapy with Avastin and Lucentis as these therapies have become available from 2006. She established an Ophthalmic Electrodiagnostic unit which provides a diagnostic service for acquired and inherited retinal disorders. To assist the rehabilitation of patients she was involved in the establishment of a multidisciplinary visual rehabilitation clinic at Auckland Hospital and the patient support group, Retina NZ.

Dianne has been a principal investigator in 2 recent international trials involved in the treatment and management of a vision threatening complication of diabetes and is co-author of a number of scientific publications.

She is a member of Retina International Scientific and Medical Advisory Board, Oceania Retina Association and the NZ representative on an Australasian Medical Advisory Board. She is a guest editor and reviewer for the Journal of Clinical and Experimental Ophthalmology, the journal of RANZCO

Dr Sharp's areas of special expertise include:

  • Age related macular degeneration assessment and treatment.
  • Diabetic eye disease screening and management.
  • Inherited retinal diseases assessment and counselling.
  • Retinal photography, fluorescein angiography (OCT.)
  • Ophthalmic Electrodiagnostic testing.
Dr Dianne Sharp

Learn more about Macular Degeneration

Find out how MD affects the lives of real New Zealanders. Watch the video, learn about the risks and see how MD is a growing problem in our society.


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Map: Where is MD in NZ?

Age-related Macular Degeneration (AMD) is a growing problem in NZ. Total prevalence is predicted to be 206,908 in 2018.

View more

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Getting tested is simple

There is a quick and easy way to tell if MD affects your vision.  Click on the link below to see if you have the common warning signs.

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What you need to know

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What's the chance?

In New Zealand MD affects 1 in 7 people over the age of 50 years

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Smokers have 3 times the risk of developing MD and tend to develop MD 10 years earlier than non-smokers

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Is it getting worse?

It is estimated the number of people with MD will increase by 70% by 2030

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More common than you think

Age related Macular Degeneration is the most common cause of blindness

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You need to know!

Of those most at risk (50+) 67% have heard of MD and only 48% understand that it is an eye disorder. *Galaxy Poll March 2014

People with a family history of MD have a 50% chance of inheriting the genetic predisposition of developing MD.

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What if I don't have treatment?

Untreated, the majority of people with wet MD become functionally blind within 2 years

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