Open AccessThe Complexities of Negative Dysphotopsia
Author(s) -
Ivayla Geneva,
Bonnie An Henderson
Publication year - 2017
Publication title -
asia-pacific journal of ophthalmology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.163
H-Index - 20
ISSN - 2162-0989
DOI - 10.22608/apo.2017111
Subject(s) - etiology , shadow (psychology) , pupil , medicine , optometry , ophthalmology , intraocular lens , position (finance) , psychology , neuroscience , pathology , finance , economics , psychotherapist
The appearance of a dark shadow in the temporal periphery, otherwise known as negative dysphotopsia, continues to be a problem for some patients after routine uncomplicated cataract surgery. Etiologies include type and design of intraocular lens (IOL), anatomical features and dimensions of the eye, pupil size, angle kappa, relationship of the optic to the anterior capsule, and the position of the optic/haptic junction of the IOL. Although the primary etiology remains controversial, it is clear that the cause is multifactorial. All of the factors should be considered when attempting to prevent or treat this phenomenon.