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Kestenbaum’s rule (Strength of reading plus lens)

Kestenbaum’s rule (Strength of reading plus lens)

Kestenbaum’s rule (Strength of reading plus lens)

Kestenbaum’s rule: used to estimate strength of plus lens required to read newspaper print without accommodation
Add power = reciprocal of best distance acuity
Reciprocal of add power = working distance (in meters)

Example: 20/80 vision; add = 80/20 = +4.00 D; working distance = 1/4 (0.25 m)

Kestenbaum’s rule (Strength of reading plus lens)

Kestenbaum’s rule (Strength of reading plus lens)

Source:

Review of Ophthalmolgy Book

Ophthalmology Atlas(Photos of cases)

Kestenbaum’s rule (Strength of reading plus lens)

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Kestenbaum’s rule (Strength of reading plus lens) Kestenbaum’s rule: used to estimate strength of plus lens required to read newspaper print without accommodation Add power = reciprocal of best distance acuity Reciprocal of add power = working distance (in meters)Example: 20/80 vision; add = 80/20 = +4.00 D; working distance = 1/4 (0.25 m) Source: …

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One comment

  1. How about 20/20 VA?
    55 yo and +1.00 ADD?
    Confused a little…

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