Visual Satisfaction Research Articles

The Effects on User Attention of Using Multimedia Features on Arabic Sports Websites: A Quasi-Experimental Study (Arabic)

Multimedia capacity is one of the most important aspects of the website design industry, particularly with respect to sports, which is characterized by a large audience of followers operating on two levels, the method of content production and presentation, and the general appearance of the website. The present study aims to examine the effects of using multimedia features on users’ attention to home page contents of Arabic sports websites. The researchers devised an experimental design technique for testing the hypotheses of a multidimensional visual performance evaluation (MVPE) model. According to the MVPE model results, there is a positive correlation between the quality of the multimedia features and the degree of visual perception of sports websites. Additionally, the quality of the multimedia features was shown to have a positive correlation with the degree of visual attention. The results of the study in the experimental groups found significant differences between the ease of multimedia use on the awareness of news content on sports websites. Furthermore, there are differences in the usefulness of the information included in the multimedia features on the perception of news content. Additionally, there are differences in the general visual satisfaction with the perception of the news content of the multimedia features.

Evaluation of the Effects of Multifocal Intraocular Lens Oculentis LENTIS Mplus LS-313 MF30 on Visual Performance in Patients Affected by Bilateral Cataract and Treated with Phacoemulsification.

Background The purpose of this study was to evaluate the visual results and patients' satisfaction with surgical treatment of phacoemulsification and implantation of the innovative intraocular multifocal lens (MFIOL) Oculentis LENTIS Mplus MF30 in patients with bilateral cataracts. Materials and Methods A single-center prospective observational study was conducted on a total of 20 patients with bilateral cataracts. We evaluated the monocular UCVA and BCVA at 1 day, 7 days, 1 month, 3 months, and 6 months at different distances after phacoemulsification and MFIOL implantation and the binocular UCVA at the same distances. We also assessed the frequency of visual disturbances, overall visual satisfaction, spectacles dependence, and ease of performing different daily activities. Results The MFIOL Mplus MF30 was able to significantly improve the monocular UCVA and BCVA at all working distances. Overall visual satisfaction was above 9/10 in all postoperative observation intervals. The degree of independence from spectacles at all distances was 100%. The frequency of adverse visual phenomena was minimal. Conclusions In accordance with the literature, the Oculentis LENTIS Mplus MF30 has proved to be a valid therapeutic alternative for visual rehabilitation after phacoemulsification of the cataract in patients also wishing to treat presbyopia, at the cost of very few visual adverse effects. Trials Registration. This trial is registered with ISRCTN20862627.

Study on the Relationship between Restoration Benefit and Visual Satisfaction of LONG-PLAN’s Indoor Vertical Greenery

This study investigates the psychological restorative benefits of indoor vertical greenery and its relationship with visual satisfaction. Taking the Solar Decathlon China 2018 champion project “LONG-PLAN” as the experimental field, we conducted a questionnaire survey to evaluate the effect of indoor vertical greenery on creating a restorative environment. Then we further studied the relationship between the restorative environmental factors and visual satisfaction of indoor vertical greenery. The results show that: (1) Indoor vertical greenery has a positive impact on the subjective restoration of respondents (the average value of PRS = 4.150). (2) The three factors of “being away,” “fascination and compatibility,” and the “extent” of environmental restoration have a significant positive correlation with the visual satisfaction of indoor vertical greenery (the correlation coefficient values are 0.403, 0.627, and 0.425, respectively, p < 0.01). (3) In the stepwise regression analysis of the three factors and the visual satisfaction of indoor vertical greenery, only “fascination and compatibility” show a significant positive correlation (the regression coefficient = 0.753, p < 0.01). (4) The visual satisfaction of indoor vertical greenery has a significantly positive impact on environmental recovery (the regression coefficient = 0.459, p < 0.01). The study shows that indoor vertical greenery improves visual satisfaction and contributes to a restorative environment. In addition, the study provides further evidence of the mutual facilitation between restorative benefits and visual satisfaction.

Implantation of a Small Aperture Intraocular Lens in Eyes with Irregular Corneas and Higher Order Aberrations

PurposeCorneal irregularities can lead to high order aberrations (HOAs) and may influence the outcomes in terms of intraocular lens (IOL) selection and visual acuity assessment. The aim of this study was to evaluate the visual acuity and satisfaction after IC-8 implants in patients characterized by corneal irregularities and HOAs who could not undergo refractive surgery due to the poor residual thickness of the cornea or other conditions such as astigmatism secondary to previous radial keratotomy.MethodsThis descriptive, retrospective cohort study was conducted on nine eyes in six patients affected by corneal irregularities and HOAs who had undergone IC-8 IOL implantation. The primary endpoint was the best-corrected visual acuity (BCVA), the subjective visual function, and the visual field.ResultsNine eyes of six patients (three bilateral implantation) were enrolled. For each patient, BCVA, vision, and lifestyle quality were evaluated. In all patients, we noticed an improvement in all parameters without visual field defects.ConclusionOur work encourages the use of the IC8 lens to improve visual acuity in patients with irregular corneas and HOAs who cannot be treated with customized refractive surgery. Patients experience a subjective improvement of their quality of vision and also more self-confidence in their daily life. IC-8 lenses do not interfere with the visualization of retinal fundus and there is no impairment of the visual field detected by patients.

Progressive addition lenses wearers’ visual satisfaction among Saudi population

Background: Progressive additive lenses (PALs) are an increasingly prescribed form of optical compensation to correct refractive error with presbyopia but sometimes with noticeable restrictions that can reduce visual satisfaction. Aim: The current study evaluated vision satisfaction rate and any associated problems among Saudi PAL wearers. Setting: The study was conducted in Al-Qassim and Al-Riyadh regions, Saudi Arabia. Methods: A cross-sectional design was used with a Likert-scale questionnaire survey (LQS) in this study. Data were analysed using Statistical Package for Social Sciences (SPSS) software version 21, Graphpad Prism, and MS Excel programmes, and p < 0.05 was considered statistically significant. Results: One hundred and thirty-eight Saudi PALs wearers (87 men [63%] and 51 women [37%]) aged over 40 years participated in the study. Participants completed an online questionnaire concerning their levels of visual satisfaction and reported any complaints while using PALs. The overall results indicated high levels of satisfaction with comfortable vision in all tasks (median = 4 on LQS) with 55% overall vision satisfaction ( p = 0.001). A strong association was found between the overall vision satisfaction and seeing when driving, and, also, with reading ( p < 0.001). The length of time since starting the use of PALs was found to be significantly ( p = 0.001) associated with overall satisfaction and associated complaints, while gender and age had no impact on overall vision satisfaction. Conclusion: Saudi PAL wearers possess a good level of visual satisfaction while experiencing some difficulties and complaints when using their PALs. Gender and age were not factors that impacted overall visual satisfaction and complaints; however, time since starting to wear PALs was a factor.

Atelocollagen-Induced Chondrogenesis Versus Microfracture Alone for Osteochondral Lesions of the Talus: Surgical Technique and a 1-Year Clinical Outcome Study.

Osteochondral lesions of the talus (OLTs) are a common cause of post-traumatic ankle pain and disability. Atelocollagen-induced chondrogenesis (ACIC) aims to encourage the development of hyaline cartilage, which is biomechanically superior to fibrocartilage. This single-center, retrospective database study assessed patients who underwent arthroscopic microfracture with or without atelocollagen scaffold augmentation for OLT. Between 2010 and 2019, 87 patients underwent microfracture only and 31 patients underwent ACIC. Propensity score matching was used to match the ACIC group in a 1:2 ratio to a corresponding microfracture-only group using logistic regression. American Orthopaedic Foot & Ankle Society (AOFAS) scores, 100-mm Visual Analog Scale (VAS), Short Form-36 (SF-36), and satisfaction were assessed at preoperative, 3-, 6-, and 12-month intervals. There were no differences in baseline characteristics between groups after matching (P > .05). Both groups had similar improvements to VAS, AOFAS, and SF-36 scores up to 12 months (P > .05). Both groups had significant 1-year improvements to physical functioning, physical limitations in usual role activities, pain, and social functioning domains, but the ACIC group additionally had significant improvements to general health, vitality, and mental health. Patients in the ACIC group were also more satisfied than the microfracture group at all time points. Patients with OLTs who underwent ACIC reported superior satisfaction and improvements to quality of life, although clinical outcomes were similar to those who underwent microfracture alone at 1 year.Level of Evidence: Level III: Cohort study.

Effects of tilt and decentration of Visian Implantable Collamer Lens (ICL V4c) on visual quality: an observational study

BackgroundThe central hole of the Visian Implantable Collamer Lens (ICL V4c) provides a reference to observe its tilt or decentration. This study aimed to investigate the tilt and decentration effects of ICL V4c on visual quality after implantation.MethodsA total of 135 eyes from 69 patients who underwent ICL V4c implantation were included in this study. Evaluation of uncorrected distance visual acuity (UDVA), corrected distance visual acuity (CDVA), and aberrations were performed 6-months postoperatively. The anterior segment parameters were collected using CASIA2 anterior segment-optical coherence tomography, tilt and decentration of ICL V4c were analyzed using MATLAB software. All patients received questionnaires to investigate the visual quality postoperatively.ResultsThe safety and effectiveness were 1.18 ± 0.17 and 1.11 ± 0.18, respectively. No significant changes were observed regarding higher-order and spherical aberrations after the operation; however, coma and trefoil significantly increased compared to preoperative values. The average total decentration and tilt was 0.21 ± 0.12 mm and 2.54 ± 1.00°, respectively. Horizontal, vertical, and total values of tilt and decentration were not significantly associated with postoperative CDVA, UDVA, and aberrations. The most common visual symptom was halo, and 97.04% of patients had a satisfaction score ≥ 8. The total or horizontal tilt was significantly positively correlated with the frequency, severity, and bothersome scores from the questionnaires.ConclusionsICL V4c implantation can obtain high visual quality and patient satisfaction. Although the degree of tilt and decentration after ICL V4c implantation was small, a positive effect on subjective visual quality was observed.

Evaluating the Level of Lighting Satisfaction and Determining Degrees of Visual Fatigue, Mental Task Load, Sleepiness, and Sleep Quality in Students

: Lighting affects humans in many ways, including intelligence, body temperature, and sleep patterns. This study aimed to evaluate lighting satisfaction, mental task load, visual fatigue, and sleep quality in students. The present cross-sectional study was conducted on 100 students of Saveh Faculty of Nursing and Midwifery, Iran, in 2020. The data of their levels of lighting satisfaction, mental task level, visual fatigue, and sleep quality were collected using standard questionnaires and analyzed using SPSS Software version 21. The quantitative variables were reported in mean and standard deviation and qualitative variables in frequency and percentage. A chi-square test was used to compare qualitative variables. In addition, the independent t-test was applied to compare the sleepiness score according to the relevant variables and the Pearson correlation test was utilized to investigate the relationship between sleepiness and sleep quality scores. The significance level was less than 0.05 for all statistical tests. The results indicated that the students’ satisfaction scores with current lighting were indifference. Visual fatigue was low, and sleepiness was mild. The students' subjective task load and sleep quality were moderate and low. There was a significant inverse relationship between visual fatigue and lighting satisfaction (P < 0.001). In addition, visual fatigue and task load had a significant direct relationship (P < 0.001). The average number of hours of sleep per night was 6.72 hours for students, which was less than the normal recommended amount. The average sleep quality was 11.06, which was low in the population. According to the results, the students’ mental task load and sleep quality were medium and low. It seems necessary to pause and rest between training, increase the variety of educational activities, appropriate training, and lighting intervention.

Conversational agent-based guidance: examining the effect of chatbot usage frequency and satisfaction on visual design self-efficacy, engagement, satisfaction, and learner autonomy

Conversational agent-based guidance: examining the effect of chatbot usage frequency and satisfaction on visual design self-efficacy, engagement, satisfaction, and learner autonomy

Laser corneal enhancement after trifocal intraocular lens implantation in eyes that previously had photoablative corneal refractive surgery.

To evaluate the visual and refractive outcomes of laser corneal enhancement after trifocal intraocular lens (IOL) implantation in eyes previously treated with myopic/hyperopic laser corneal refractive surgery (LCRS). Clinica Baviera-AIER-Eye Group, Spain. Retrospective comparative case series. Patients were divided by primary LCRS into myopic and hyperopic groups. The outcomes evaluated were uncorrected distance (UDVA), corrected distance (CDVA), uncorrected intermediate (UIVA), and uncorrected near visual acuity (UNVA), and predictability, safety, efficacy, and satisfaction after implantation of 2 trifocal IOL models (Physiol-FineVision and Zeiss-ATLisa 839) and subsequent laser enhancement. 186 eyes (89 myopic and 97 hyperopic eyes) from 146 patients were assessed. At the last visit, refractive outcomes were better in myopic than those in hyperopic eyes, with statistically significant differences for sphere ( P < .001), cylinder ( P < .001), manifest refraction spherical equivalent (MRSE) ( P = .003), CDVA ( P = .005), UDVA ( P = .047), and UNVA ( P = .003) but not for UIVA ( P = .580), binocular UIVA ( P = .660), or binocular UNVA ( P = .836). Predictability differences were nonsignificant between groups for a final MRSE of ±0.5 diopters (D) and ±1.0 D (P = .167 and .502, respectively). Efficacy and safety were similar in both groups ( P = .235 and P = .080). A greater myopic MRSE was present after trifocal implantation in myopic than in hyperopic eyes (MRSE = -0.93 vs -0.69 D, P = .013), and the statistically significant differences were maintained after enhancement between both groups (MRSE -0.00 vs 0.00 D, P = .003). Overall satisfaction was similar in both groups ( P > .05 all items). Corneal laser enhancement after implantation of a trifocal IOL in eyes previously treated for myopia or hyperopia with LCRS was safe, effective, predictable, and highly satisfactory.

Prostatic Artery Embolization (PAE) Using Polyethylene Glycol Microspheres: Safety and Efficacy in 81 Patients

PurposeTo evaluate the safety and efficacy of prostatic artery embolization (PAE) using polyethylene glycol microspheres (PEGM) in patients with lower urinary tract symptoms secondary to benign prostatic hyperplasia (BPH).Materials and methodsThis multicentric prospective study enrolled 81 patients who underwent PAE with 400 ± 75 µm PEGM (HydroPearl®, Terumo, Japan). Results from baseline and 1-, 3-, 6-, and 12-month follow-ups were assessed for subjective outcomes including International Prostate Symptoms Score (IPSS), Quality of life (QoL), and International Index of Erectile Function, and objective outcomes such as peak urinary flow (Qmax) and post-void residual volume (PVR). The visual analogue scale, satisfaction questionnaire, prostatic volume, and prostatic specific antigen levels were also evaluated. Complications were documented using the modified Clavien–Dindo classification.ResultsTechnical success was obtained in all patients. Clinical success was achieved in 78.5% of patients. Before PAE, 54.3% of patients had an indwelling catheter which was removed in 75% of them after procedure. A statistically significant decrease was observed in IPSS and QoL from baseline to 12 months (20.14 vs 5.89; 4.8 vs 0.63, P < .01), respectively. Objective outcomes also showed a statistically significant improvement in Qmax (+ 114.9%; P < .01), achieving a maximum urinary flow of 14.2 mL/sec, and PVR (decrease 58%; P < .05) at 12 months. Minor complications (Clavien–Dindo grades I–II) occurred in 13.6% of patients, without major complications observed.ConclusionPAE with PEGM is safe and effective treatment in patients with symptomatic BPH, with a significant improvement in both subjective and objective outcomes.

Depth of field and visual performance after implantation of a new hydrophobic trifocal intraocular lens

PurposeTo assess the depth of field (DOF) by means of defocus curve analysis applying different visual acuity criteria in patients following cataract surgery and bilateral implantation of a new trifocal diffractive intraocular lens (IOL).MethodsFifty eyes of 25 consecutive patients who underwent implantation of the Asqelio™ trifocal IOL (AST Products Inc., USA) were enrolled in this observational prospective study. Monocular subjective DOF was obtained from defocus curves with absolute and relative criteria of tolerance for different visual acuities values. Patient’s visual satisfaction, postoperative refraction and visual acuity at far, intermediate (67 cm) and near (40 cm) distances were also measured at 1 and 3-months post-surgery. Analysis of variance was used to assess differences in refractive error after the surgical procedure, and paired t-tests were used to assess differences in VA. Patient satisfaction results were reported as percentages.ResultsSpherical equivalent was 0.05 ± 0.23 D and residual cylinder 0.01 ± 0.23 D 3-months after the surgery. Absolute DOF obtained was 3.29 ± 0.91 D considering 0.1 LogMAR as cut-off value, and 4.82 ± 0.69 D when 0.3 logMAR as cutoff value. Relative DOF considering a drop of 0.1 logMAR from maximum visual acuity was 2.57 ± 0.82 D, and 1.27 ± 0.70 D when a drop of 0.04 logMAR was considered. Visual acuities obtained 3-months after the surgery were 0.03 ± 0.13, − 0.05 ± 0.06, 0.03 ± 0.08 and 0.04 ± 0.08 logMAR for uncorrected and best-corrected for distance, and best distance-corrected for intermediate and near distances, respectively. Average response to visual satisfaction queries was 8.24/10 at distance, 8.04/10 at intermediate, and 7.88/10 at near.ConclusionsPatients implanted with this trifocal IOL showed a significant improvement in visual acuity at different distances providing wide absolute and relative DOF values. The outcomes demonstrate that this lens is predictable yielding good patient satisfaction rates.

SMILE for the Treatment of Residual Refractive Error After Cataract Surgery.

IntroductionIn the context of managing patients’ expectations and satisfaction regarding visual acuity after cataract surgery, we aimed to investigate the improvement in visual acuity and patient satisfaction after small-incision lenticule extraction (SMILE) in pseudophakic (trifocal intraocular lens, IOL) patients with residual myopic refraction after cataract surgery.MethodsSeventy-six patients (82 eyes) who underwent cataract surgery with ZEISS AT LISA tri 839MP IOL implantation were included in this retrospective study. The included patients were 56–79 years old, wanted spectacle independence, and had preoperative myopic refraction between − 1.0 and − 2.25 diopters (D) and astigmatism between − 0.75 and − 1.75 D. The treatment status of these patients was defined as trifocal IOL (n = 82). SMILE was performed in patients who were dissatisfied after cataract surgery, and these patients were followed up for 1 year on average. We evaluated visual acuity and satisfaction and further examined laser vision correction and satisfaction levels in patients who were dissatisfied after trifocal IOL implantation.ResultsThe possible reasons for patient dissatisfaction were reading books, using a computer, and driving at night. After SMILE, the residual myopic refractive error (spherical) decreased significantly from − 2.08 ± 0.28 [− 2.25 to − 1.0] preoperatively to − 0.25 ± 0.20 − 0.5 to 0] 1 year postoperatively (p < 0.001). Additionally, the uncorrected distance visual acuity increased from 0.65 ± 0.08 [0.52–0.7] logMAR preoperatively to 0.09 ± 0.02 [0.05–0.1] logMAR at 1 month postoperatively (p < 0.001), 0.09 ± 0.02 [0.05–0.1] logMAR at 6 months postoperatively, and 0.06 ± 0.02 [0.05–0.1] logMAR at 12 months postoperatively (p < 0.001). Patient satisfaction measures after SMILE (reading, night driving, and using a computer) were significantly improved.ConclusionSMILE is a reliable method for treating residual refraction after cataract surgery, as it provides results in the shortest time without complications and increases patient satisfaction.Trial RegistrationThe protocol was registered on clinicaltrials.gov (NCT04693663).

Optimization of Computer Web Page Interface Based on BP Neural Network Algorithm and Multimedia.

In web design, we need to make full use of computer multimedia technology, which can effectively improve the quality of web design and provide greater convenience. The neural network needs to calculate a large amount of training data in image optimization, and the calculation speed cannot keep up with real-time data processing, resulting in the problem of poor quality of optimized images. This paper analyzes the problems existing in the traditional optimized BP neural network algorithm and puts forward an optimized BP neural network image optimization method which combines the increase of momentum term with the adaptive adjustment of learning rate. This method can speed up the iteration speed and jump out of the situation of premature local minimum. The test results show that the user satisfaction of the text visual effect of the web interface optimized by this method is more than 98% and the user satisfaction of other methods is only about 90%. The visual satisfaction of the web interface optimized by this method is significantly higher than that of the comparative method. The web interface visual optimization effect of the method in this article is better, and it can meet the satisfaction requirements of most users.

Safety and tolerability of Pau d′ Arco (Tabebuia avellanedae) for primary dysmenorrhea: A single-arm, open-label trial on adults ages 18–45

ObjectivesTo evaluate the safety and tolerability of encapsulated Tabebuia avellanedae in generally healthy women aged 18–45 with primary dysmenorrhea. MethodsA single arm, open-label trial was conducted in which 1050 mg/day of encapsulated Tabebuia avellanedae (Pau d′Arco) was administered to twelve healthy women aged 18–45 for eight weeks. The primary outcome was safety and tolerability as measured by standardized adverse events scales and serial collection of laboratory markers to assess general health, prothrombin times, and the presence or absence of anemia. Secondary outcomes included pain intensity, quality of life, and pain interference measured by the Visual Analog Scale (VAS), the Patient-Reported Outcomes Measurement Information System (PROMIS) 29 survey, and the PROMIS Visual Sexual Function and Satisfaction: Interfering Factors survey, respectively. Exploratory outcomes included serum concentration of high-sensitivity C-reactive protein as a marker of systemic inflammation. ResultsSeventy-five percent of participants (n = 9/12) completed the study. Seventy-five percent of study participants (n = 9/12) reported an adverse event, most of which were characterized as mild, and none were determined to be a Food and Drug Administration (FDA) serious adverse event. Most laboratory markers stayed within normal limits throughout the study period with a few clinically mild abnormalities. There was a significant decrease in pain intensity compared to baseline after the first dose (p < .01), after 4 weeks of treatment (p < .01), and after 8 weeks of treatment (p < .01). Over the 8-week intervention period, pain interference, quality of life, and sexual function and satisfaction scores improved nonsignificantly and hs-CRP decreased nonsignificantly. ConclusionsTabebuia avellanedae supplementation of 1050 mg/day dose for eight weeks in generally healthy women aged 18–45 with primary dysmenorrhea was generally safe, associated with moderate tolerability, and associated with significant improvements in pain intensity scores. Future studies examining the safety and efficacy of Tabebuia avellanedae on primary dysmenorrhea are warranted.

The Effects of Angle Kappa on Clinical Results and Patient-Reported Outcomes After Implantation of a Trifocal Intraocular Lens.

PurposeTo objectively determine if angle kappa materially influenced clinical outcomes or patient-reported satisfaction and visual quality of patients implanted with a trifocal intraocular lens (IOL).MethodsThis was a non-interventional study of clinical outcomes. Subjects were patients choosing to be bilaterally implanted with a trifocal IOL (PanOptix®) who were then evaluated 3 months postoperative. Angle kappa (AK) was measured before surgery and at the 3-month visit. The 3-month visit included a manifest refraction, and measurement of uncorrected and distance corrected acuity at 4 m, 60 cm and 40 cm. Visual quality and satisfaction questionnaires were also administered.ResultsData from 56 eyes of 28 subjects were analyzed; 26 eyes had an AK magnitude <0.3 mm, 14 had an AK from 0.3 mm to less than 4 mm and 16 had an AK ≥0.4 mm. Neither visual disturbances (eg, glare, halos, starbursts), satisfaction nor spectacle dependence were correlated to the magnitude of angle kappa. The magnitude of postoperative AK was significantly lower than preoperative (0.24 ± 0.12 mm vs 0.30 ± 0.16 mm, p < 0.01).ConclusionThe magnitude of preoperative Angle Kappa had no apparent effect on the refractive, visual acuity or subjective (visual disturbances, quality of vision, satisfaction) clinical outcomes with this trifocal IOL. The magnitude of angle kappa was significantly lower after surgery.

Effects of Animated Screen Transition in In-Vehicle Infotainment Systems: Perceived Duration, Delay Time, and Satisfaction

Enhancing the user experience of in-vehicle infotainment system (IVIS) GUIs has gained importance in the vehicle industry. However, there are no studies on the effects of animated transitions in an IVIS screen. We investigated the effects of animated transitions on the perceived duration, delay time, and satisfaction of IVISs. Forty participants divided into two groups (Slide and Fade) performed touch tasks to experience different transition effects and evaluate each condition. The transitions were manipulated considering transition type (NS, Split-R, Split-M), easing type (Ease-out, Ease-In), and interval time (0, 150, 300, 450, 600 ms). An analysis indicated that Split-R (fade-fade) in the Fade group and Split-M (fade-slide) in the Slide group best satisfied users. Post-interviews revealed that the interval time should not exceed 450 ms, while an appropriate interval (150 ms) is necessary to enhance the user’s visual perception and satisfaction. Our results may provide effective guidelines for designing animated transitions in IVIS.

Visual Performance of a Novel Optical Design of a New Multifocal Intraocular Lens.

To evaluate the optical performance and quality of vision of a novel optical design of a new trifocal intraocular lens (IOL) using a proprietary modified algorithm. In this prospective, non-randomized, single-armed, single-center, open-label study, a total of 20 patients (40 eyes) who were candidates for multifocal lens implantation were recruited for implantation with the multifocal Intensity SL IOL (Hanita Lenses). Evaluation performed at 1 and 7 to 10 days and 1 and 3 months after implantation included corrected and uncorrected distance visual acuities at far, intermediate (80 cm), and near (40 cm). Monocular and binocular visual acuities, defocus curves, and contrast sensitivity were measured and questionnaires for grading subjective visual quality, satisfaction, and visual function were provided. Three months postoperatively, monocular uncorrected visual acuity for distance, intermediate, and near averaged 0.03 ± 0.11, 0.09 ± 0.09, and -0.22 ± 0.09 logMAR, respectively (Snellen 20/21.4, 20/24.6, and 20/12). Corrected monocular visual acuity for distance, intermediate, and near averaged -0.07 ± 0.06, 0.03 ± 0.09, and -0.25 ± 0.07 logMAR (20/17, 20/21.4, and 20/11.2), respectively. Binocular corrected visual acuity for distance, intermediate, and near was -0.1 ± 0.06, -0.02 ± 0.09, and -0.28 ± 0.04 logMAR (20/15.8, 20/19, and 20/10.5), respectively. Contrast sensitivity was similar to the normal population in photopic and mesopic conditions. Defocus curves showed that this IOL provided visual acuity of 20/28.9 or better between a defocus of +1.00 and -3.50 diopters. The Visual Function Index-14 questionnaire showed that patients reported high satisfaction. Patients specifically noted good quality of vision at near and intermediate distances. The Intensity SL IOL can provide good quality distance, intermediate, and particularly strong near vision after cataract surgery and independence from spectacles with good patient satisfaction. [J Refract Surg. 2022;38(3):150-157.].

Influence of Near Addition Power on the Acceptance and Performance of Progressive Contact Lenses

Purpose: An eye care professional (ECP) belief is that multifocal contact lenses (MFCL) perform well and produce good levels of vision satisfaction in emergent presbyopes but sometimes fail in advanced presbyopes due to the large disparity between distance and near powers in high addition designs. The objective of the analysis was to compare vision satisfaction and visual performance achieved by MFCL in emergent, established and advanced presbyopes. The hypothesis tested was that performance is maintained over the range of near addition powers.

Psychological Cognitive Factors Affecting Visual Behavior and Satisfaction Preference for Forest Recreation Space

Background: People are paying increasing attention to urban forest landscapes, and recreational landscape spaces (providing recreation and viewing functions) are an important part of the urban forest landscape. Visual tracking technology is a flexible and accurate modern research method. When this technology is applied to forest landscape evaluation, it can assist in explaining the content that could not be studied in depth in the past and has high application value. However, although an eye tracker can tell us what the user is looking at, it cannot tell us why they are looking at it or how they feel after seeing it. To this end, we combined a 7-point spatial cognition questionnaire and satisfaction preference to understand the visual behavior (fixation point time, number of fixation points, etc.) and preference satisfactions of users in recreational landscape spaces to help designers understand what elements attract people’s visual attention and improve the design of these spaces. Methods: We used eye-tracking and cognitive questionnaires to obtain experimental data and used factor analysis and linear regression analysis of SPPS 23.0 to analyze data. Main purpose: Clarify the factors affecting people’s visual behavior and satisfaction preferences in forest recreation spaces to provide theoretical guidance for planning and designing forest landscapes. Main results: (1) Places with more frequent eye movements have relatively lower satisfaction preferences; (2) The spatial perception factors affect participants’ visual behavior, and satisfaction preference is different based on many indicators (WCB, WSO, WSN, SSH, etc.) in forest recreation space; (3) The professional background education affects the participants’ visual-behavior evaluation of the recreational landscape space and also affects the participants’ focus on the landscape preference. When the spatial type of forest recreation space changes, the spatial perception factors that affect the participants’ visual behavior and satisfaction preferences also change. Based on the above, we suggest that in forest recreation space, the spatial perception indicators should be improved according to the characteristics of space itself, then improve the satisfaction preferences for the scene in a targeted manner to make participants produce effective and positive visual behavior. Meanwhile, for a well-built forest park, we should provide the landscape node with the best visual effect and satisfaction preference for tourists from different professional backgrounds on the park’s tour route map based on the characteristics of the forest recreational landscape space.