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Using Retinal Imaging to Study Dementia

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Do optic discs get "thinner" or "narrower?".

George L Spaeth¹, Kalpana K Jatla, Parul Ichhpujani

¹Anna V. Goldberg Glaucoma Service, Wills Eye Institute, Philadelphia, PA 19107, USA. gspaeth@willseye.org

Journal of Glaucoma

|October 27, 2009

Summary

Ophthalmologists commonly use "thinning" to describe neuroretinal rim loss in glaucoma. This study suggests standardizing "narrowing" for radial loss and "thinning" for thickness reduction for clearer glaucoma phenotyping.

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Area of Science:

Ophthalmology
Glaucoma research
Optic nerve head analysis

Background:

The neuroretinal rim's dimensions are crucial for diagnosing and monitoring glaucoma.
Standardized terminology is needed for accurate clinical descriptions and research.

Purpose of the Study:

To review current literature on describing neuroretinal rim dimensions in glaucoma.
To clarify and standardize terminology for changes in neuroretinal rim dimensions.

Main Methods:

A literature review of 275 articles on the neuroretinal rim in glaucoma.
A survey of 295 ophthalmologists assessing descriptions of optic disc photographs.

Main Results:

"Thinning" was used more frequently (41 articles) than "narrowing" (13 articles) to describe radial rim loss.
Ophthalmologists predominantly used "thinner" (264) over "narrower" (31).
Most articles described rim characteristics using "width".

Conclusions:

"Thinning" is the prevalent term for progressive radial neuroretinal rim loss.
Recommend using "narrowing" for radial loss/width decrease and "thinning" for thickness decrease.
Standardized phenotyping improves patient care, research, and training in glaucoma.