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Year : 2023  |  Volume : 3  |  Issue : 2  |  Page : 349-353

Could this be a lead for a solution to negative dysphotopsia?

Consultant Neurologist, Department of Neurology, Sathbhavana Brain Clinic, Secunderabad, Hyderabad, Telangana, India

Correspondence Address:
Nagabhushana R Potharaju
H.No. 10-3-185, St. John's Road, Secunderabad, Hyderabad - 500 025, Telangana
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/ijo.IJO_1497_22

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Negative dysphotopsia (ND) was diagnosed when the mydriatic effect waned off by 4 h after intraocular lens implantation providing time for the institution of immediate rectification measures. ND was a peripheral temporal visual field defect (VFD) and manifested as a 100% black shadow having an inner arc with a sharp, smooth, and concave edge and outer border extending to the temporal periphery. ND disappeared when two fingers were kept blocking the ND over the affected side within ≤1” of the temple. The extent of VFD varied with eye movement. Clinically, intraocular lens is the cause of ND and not neuroadaptation.

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