Comparison of Haptic Orientation in Negative Dysphotopsia
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About
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.
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Inclusion and exclusion criteria
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.
Trial design
Primary purpose
Allocation
Interventional model
Masking
0 participants in 2 patient groups
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Data sourced from clinicaltrials.gov
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