Comparison of Horizontal and Vertical IOL Haptic Orientation in Negative Dysphotopsia.
Comparison of Horizontal and Vertical IOL Haptic Orientation in Negative Dysphotopsia.
Previous studies attempted to understand the dysphotopsia phenomenon by examining intraocular lens type, anterior capsule depth, iris-to-lens depth, lens refractive material, clear cornea incision wounds and anterior capsulorrhexis. However, there is limited literature in understanding haptic orientation and negative dysphotopsia; postulated theories and anecdotal reports relate to horizontal haptic orientation and the lateralization of rays such that light is received both in smaller width and anterior to the peripheral retina; however, no formal studies currently exist.
Inclusion Criteria: Patients with bilateral cataracts that are visually significant meeting standard criteria for removal and select standard monofocal lens implantation.
Exclusion Criteria: Patients with any prior refractive surgery including prior cataract surgery, corneal ocular pathology, iris atrophy/damage, retinal or optic nerve pathology. Patients with history of peripheral vision loss. Patients selecting multifocal or toric lens implantation.