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Purpose:To evaluate the visual acuity, defocus curve and visual quality of life following bilateral implantation of a new hybrid extended depth of focus (EDOF)-multifocal diffractive intraocular lens (IOL). Methods:Patients who underwent cataract surgery with bilateral implantation of Tecnis Synergy IOL were enrolled in this study. The main outcomes were defined as uncorrected distant, intermediate and near visual acuities (UDVA, UIVA and UNVA, respectively), defocus curve and VF-14 questionnaire aimed for visual performance. Results:The mean ± SD values for binocular UDVA, UIVA and UNVA were −0.01 ± 0.04, 0.05 ± 0.03 and 0.03 ± 0.05 logMAR, respectively. Defocus curve showed a continuous vision above 0.16 logMAR between +0.50 D and −2.50 D. Patients had good visual performance with mean VF-14 scores above 3 points. Driving at night (3.47 ± 0.64) was found to be the most difficult task to perform. Spectacle independence was 100% for both distant and near vision. Conclusion:Bilateral implantation of Tecnis Synergy IOL in cataract patients shows good visual acuity and performance, covering a good visual range without any need of spectacles.

Assessment for the reproducibility of the answers to the Child Perception Questionnaire (CPQ11–14) in different languages with test-retest exercises have importance to be acceptable in other populations. The present study is to evaluate the validity and reliability of Child Perception Questionnaire for ages 11–14 (CPQ11–14) with 37 items by means of Rasch Analysis in a group of Turkish population. 133 children aged 11–14 years old were included to the study. CPQ11–14was administered at their first visit, as well as Facial Image Scale questions. After two weeks, CPQ11–14was re-applied to a subgroup (n = 25) of the children. The construct validity of the CPQ11–14data was assessed by using Rasch Analysis. Intraclass Correlation Coefficient was calculated with the CPQ11–14scores of first and second visits. Cronbach's α coefficient was obtained for evaluating internal consistency. According to Rasch Analysis, mean item infit ± sd was 0.98 ± 0.25; mean item outfit ± sd was 1.08 ± 0.91. Item and person separation indices and reliabilities were calculated as 3.34 and 2.42; 0.92 and 0.85, respectively. The Pearson's correlation coefficient between the total scores of CPQ11–14and the Facial Image Scale was found as 0.74 (p < 0.001). Cronbach's alpha coefficient was 0.93 and ICC was 0.90 for the total scale. The findings of the present study showed that the Turkish version of CPQ11–14with 37 items is valid and has excellent reliability.