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Small ND (Neutral Density) Bar

Product Number: 15118

Purchase the Small ND (Neutral Density) Bar from Gulden Ophthalmics. This device includes six filters: 0.3, 0.6, 0.9, 1.2, 1.5, and 1.8 log unit optical density.  This compact version of our Large ND bar is perfect for on the go use and pocket storage.  Storage Pouch included.


The filter sizes on the Small ND bar are 2.5 x 3 cm. Sealed edges prevents dust from collection between the layers.  The ND Bar is used in conjunction with the “Swinging Flashlight” test to detect and quantify the extent of any afferent pupillary defect (APD).

The 0.3 ND filter is most useful for uncovering a borderline pupil defect. The six filters are rated as: 0.3, 0.6, 0.9, 1.2, 1.5, and 1.8 log unit optical density values. The product is 16.5cm long and 3cm wide.  It is made of high grade, optically clear plastic.  Comes in a pouch.

Do not use alcohol to clean this product!  Use only mild soap and water.