Substrates of negative accommodation

Amir Raz, Gerald P. Marinoff, Kim S. Landzberg, David L. Guyton

Research output: Contribution to journalReview articlepeer-review

7 Scopus citations


Negative accommodation refers to a unique phenomenon, sparsely documented in rare individuals, whereby evanescent increases in vision (described as "flashes" of clear vision) accompany a decrease in the overall plus power of the eye. Complementing less than a handful of dated studies, a few recent personal communications from eye care clinicians claim to have objectively assessed negative accommodation (e.g., by retinoscopy). Whereas negative accommodation may explain informal accounts claiming occasional improved visual acuity in uncorrected myopes, its mode of operation is not established. We sketch a potential mechanism by which negative accommodation may operate, if it exists.

Original languageEnglish (US)
Pages (from-to)71-74
Number of pages4
JournalBinocular Vision and Strabismus Quarterly
Issue number2
StatePublished - Jun 14 2004

ASJC Scopus subject areas

  • Ophthalmology


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