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.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
SINGLE
Presence of negative dysphotopsia after cataract surgery at 6 months
Presence of negative dysphotopsia in the vertical IOL placement compared to horizontal IOL placement
Time frame: 6 months
Presence of negative dysphotopsia after cataract surgery at 1 week
Presence of negative dysphotopsia in the vertical IOL placement compared to horizontal IOL placement
Time frame: 1 week
Presence of negative dysphotopsia after cataract surgery at 1 month
Presence of negative dysphotopsia in the vertical IOL placement compared to horizontal IOL placement
Time frame: 1 month
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