The purpose of the current study was to compare the visual performance after bilateral implantation of the Panoptix IOL , or the AT LISA IOL or Tecnis Symfony IOL . The focus was on intermediate vision, defocus curves, and contrast sensitivity.
Study Type
INTERVENTIONAL
Allocation
NON_RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Enrollment
50
cataract extraction with phacoemulsification and insertion of presbyopia correcting IOL
Daralshifa hospital
Kuwait City, Kuwait
visual acuity
The monocular uncorrected (UDVA) and corrected (CDVA) distance visual acuity (4 m), uncorrected intermediate visual acuity (UIVA) (60 cm and 80 cm), distance-corrected intermediate visual acuity (DCIVA), uncorrected near visual acuity (40 cm), and distance-corrected near visual acuity (DCNVA) were assessed. Standardized logarithm of the minimum angle of resolution (logMAR) charts were used for visual acuity measurement at 4 m, 80 cm, and 40 cm.
Time frame: 6 months postoperatively.
defocus curve
The binocular defocus curve was done to evaluate the functional range of vision. The curve was obtained while the patient wearing his distance correction to provide the best distance visual acuity in both eyes. The test was performed under photopic conditions (85 candelas/m2) using ETDRS charts at a distance of 4m with the introduction of defocusing lenses from +1.00 D to -4.00 D in 0.50 D steps.
Time frame: 6 months postoperatively.
contract senstivity
The CSV-1000 system (Vector Vision Inc. Greenville, OH, USA) was used to measure contrast sensitivity under photopic and mesopic conditions without glare with spatial frequencies ranging between 3 and 18 cycles/degree.
Time frame: 6 months postoperatively.
photic phenomena
The presence of dysphotopsia including haloes, glare and starburst were assessed regarding their frequency, severity and the degree of bother.
Time frame: 6 months postoperatively.
spectacle independence
patients were given a questionnaire to assess their spectacle independence. The response for spectacle independence was yes or no.
Time frame: 6 months postoperatively.
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