RESUMEN
New Korean guidelines for the diagnosis and management of dry eye disease were developed based on literature reviews by the Korean Dry Eye Guideline Establishment Committee, a previous dry eye guideline by Korean Corneal Disease Study Group, a survey of Korean Dry Eye Society (KDES) members, and KDES consensus meetings. The new definition of dry eye was also proposed by KDES regular members. The new definition by the regular members of the KDES is as follows: “Dry eye is a disease of the ocular surface characterized by tear film abnormalities and ocular symptoms.” The combination of ocular symptoms and an unstable tear film (tear breakup time <7 seconds) was considered as essential components for the diagnosis of dry eye. Schirmer test and ocular surface staining were considered adjunctive diagnostic criteria. The treatment guidelines consisted of a simplified stepwise approach according to aqueous deficiency dominant, evaporation dominant, and altered tear distribution subtypes. New Korean guidelines can be used as a simple, valid, and accessible tool for the diagnosis and management of dry eye disease in clinical practice.
RESUMEN
Purpose@#To investigate the clinical outcomes of new hydrophobic trifocal intraocular lens with hydroxyethyl methacrylate in the Korean population @*Methods@#This prospective, multicenter, and observational study evaluated the clinical outcomes of 80 eyes of 40 patients with age-related cataract underwent cataract surgery using CNWT (Clareon PanOptix). Assessment included monocular and binocular uncorrected distance visual acuity, corrected distance visual acuity, uncorrected intermediate visual acuity (at 60cm), near visual acuity (at 40 and 33 cm), uncorrected defocus curves, questionnaires evaluating photic phenomena, spectacle independence, and spectacle free satisfaction. @*Results@#At postoperative 3 months, mean uncorrected binocular visual acuities were 0.04, 0.04, 0.03 logarithm of the minimum angle of resolution (logMAR) at far, intermediate, and near distances, respectively. All patients achieved uncorrected binocular visual acuity of 0.2 logMAR or better. Monocular and binocular defocus curve indicated a mean visual acuity of 0.2 logMAR or better at the defocus range of +1.0 to – 3.0 diopters (100 to 33 cm) and +1.0 to – 3.5 diopters (100 to 28 cm). High spectacle independence was observed at all distances, with 37.5% patients reporting photic phenomena. @*Conclusions@#The Clareon PanOptix intraocular lens has shown positive clinical outcomes, providing a viable option for cataract surgery. These lenses effectively address patients’ visual needs, especially in intermediate and near distance tasks, reducing dependence on glasses.
RESUMEN
Purpose@#To evaluate the effect of the Active Sentry handpiece of the Centurion Vision System compared to the Centurion Ozil handpiece for phacoemulsification in cataract surgery. @*Methods@#A retrospective study was conducted on 281 patients (449 eyes) who underwent cataract surgery between August 2020 and June 2021. Preoperative measurements, intraoperative parameters, complication rate, and postoperative outcomes were compared between the Active Sentry handpiece and the Centurion Ozil handpiece groups. Additionally, the parameters were compared in different cataract severity groups and multiple predictive factors for the number of active surge mitigation (ASM) actuations were assessed with the Active Sentry handpiece. @*Results@#There were 198 eyes in the Active Sentry group and 251 eyes in the Centurion Ozil group. There were no statistically significant differences between the two groups, as the cumulative dissipated energy in the Active Sentry and Centurion Ozil groups were 8.32 ± 7.74 and 7.87 ± 9.25 μJ, respectively (p = 0.576). Total surgery time, ultrasound usage time, aspiration time, amount of fluid aspirated, postoperative corrected distant visual acuity, and postoperative decrease in corneal endothelial cell density were comparable between the two groups. The significant contributors to the number of ASM actuations were age, preoperative corrected distant visual acuity, axial length, and total ultrasound time. @*Conclusions@#There was no clear advantage of the Active Sentry handpiece compared to the Centurion Ozil handpiece. ASM actuation increases with age, poor visual acuity before surgery, short axial length, and prolonged ultrasound usage time. It is expected that in more severe and high-risk cataract surgery, the Active Sentry handpiece functions more effectively, possibly affecting the safety and prognosis.
RESUMEN
Purpose@#To evaluate the long-term maintenance rate and associated factors of silicone punctal plugs in patients with Sjögren’s syndrome (SS). @*Materials and Methods@#We retrospectively reviewed the medical records of 163 patients with SS who underwent silicone punctal plug insertion between December 2013 and July 2021 at Severance Hospital. The status of punctal plug insertions was classified into the following three categories by the clinician: maintenance, spontaneous loss, and intended removal. Cox proportional hazards model was used to evaluate the risk factors for spontaneous loss. @*Results@#The mean maintenance period was 12.8±15.3 (median 7.07) months. The rate of spontaneous loss was 58%, and the rate of punctal plug removal by the clinician was 14%. The number of prior plug insertions was a risk factor for spontaneous loss [hazard ratio (HR) 1.055, p=0.035]. The upper eyelid punctum was at a higher risk than the lower one (p=0.042). Small-sized plugs showed a significantly higher risk for spontaneous loss than large-sized ones (HR 1.287, p=0.035). Flow-controller type plugs were more vulnerable to spontaneous loss than complete occluders [Micro FlowTM vs. EagleFlex® (HR 2.707, p=0.008) and Micro FlowTM vs. UltraplugTM (HR 3.402, p=0.005)]. The most common reason for removal was tear overflow (5.6%). @*Conclusion@#In repeated insertion, characteristics of the punctal plug, including the type and size, and location of plug insertion, influenced the spontaneous loss of plugs. The management of punctal plugs, including insertion, maintenance, and removal, requires personalized strategies for versatile situations.
RESUMEN
Purpose@#This study aimed to develop and evaluate the effectiveness of an educational program on developmental positioning (EPDP) for nurses in neonatal intensive care units (NICUs). @*Methods@#The study utilized a non-equivalent control group pretestposttest design. Sixty NICU nurses were recruited from two university hospitals in Daejeon, South Korea. The EPDP consisted of a 7-week program: 3 weeks of education and practice, followed by 4 weeks of encouragement messages using social networking services. Developmental positioning (DP) posters and DP aids were also provided during the intervention period. The intervention group (n=30) received the EPDP, but not the control group. The data were analyzed using the x2 test, the Fisher exact test, the independent t-test, and repeated-measures analysis of variance. @*Results@#Participants' knowledge (t=7.49, p<.001), attitudes (t=1.99, p=.001), self-efficacy (t=2.99, p=.004), performance of DP (t=2.98, p=.004) and Infant Positioning Assessment Tool (IPAT) scores (F=29.50, p<.001) were significantly higher in the intervention group than in the control group. @*Conclusion@#The EPDP can be an effective and useful program for improving the performance of DP among NICU nurses by increasing their knowledge, attitudes, and self-efficacy of DP. However, further research involving various NICU settings is needed to gather more empirical evidence.
RESUMEN
Purpose@#To compare the clinical outcomes of cataract surgery using the ARTIS ® PL E (Cristalens Industrie, Lannion, France) intraocular lens (IOL) and conventional Tecnis ® ZCB00 (Johnson & Johnson Vision, Santa Ana, CA, USA) IOL. @*Methods@#This retrospective study examined patients who underwent in-the-bag implantation of either an ARTIS ® PL E (33 eyes, group A) or Tecnis ® ZCB00 (45 eyes, group B) IOL after phacoemulsification performed by a single surgeon. Best-corrected visual acuity (BCVA), spherical equivalent, and higher-order aberrations (HOA) were measured 1 and 3 months after cataract surgery. @*Results@#Preoperative BCVA did not differ significantly in groups A and B. Postoperative BCVA at 1 and 3 months improved significantly (p < 0.001) in both groups compared to preoperative baseline BCVA. At 1 and 3 months postoperatively, total HOA, spherical aberration, and coma were significantly lower compared to the preoperative baseline HOA (p < 0.05) in both groups. However, there were no significant differences in the trefoil values 1 and 3 months postoperatively compared to the preoperative baseline in both groups. The absolute refractive error 3 months postoperatively was 0.27 ± 0.20 (group A) and 0.28 ± 0.20 (group B), both within ± 0.50 diopters of the targeted goal diopter; there were no significant differences in the accuracy or predictability of the IOL power calculation in both groups (p = 0.390, p = 0.959). The absolute refractive error 1 and 3 months postoperatively did not differ significantly; there were no significant differences in the stability of both IOLs (p = 0.482, p = 0.372). @*Conclusions@#Conventional cataract surgery using the ARTIS ® PL E IOL significantly increased the BCVA, while obtaining comparable clinical results to the verified Tecnis ® ZCB00 IOL in postoperative visual acuity and HOA.
RESUMEN
Purpose@#To compare anterior biometry measurements using placido-scanning-slit topography, rotating Scheimpflug tomography, and swept-source optical coherence tomography. @*Methods@#A retrospective review consisted of 80 eyes of 49 participants who underwent anterior chamber depth (ACD), central corneal thickness (CCT), and keratometry examination on the same day. We used placido-scanning-slit topography (ORBscan II), rotating Scheimpflug tomography (Pentacam HR), and swept-source optical coherence tomography (CASIA SS1000). The intraclass correlation coefficients and Bland-Altman plots were used to evaluate the agreement and differences between measurements. @*Results@#The mean ACD values were 2.88 ± 0.43, 2.82 ± 0.50, and 2.68 ± 0.44 mm; and the mean CCT values were 536.96 ± 31.19, 543.79 ± 31.04, and 561.41 ± 32.60 μm; and the mean keratometry (Km) were 43.81 ± 1.69, 43.81 ± 1.77, and 44.65 ± 1.95 diopters; as measured by CASIA SS-1000, Pentacam HR, and ORBscan II, respectively. Among the three devices, ACD was deepest to shallowest in the order of CASIA SS-1000, Pentacam HR, and ORBscan II (p < 0.05). The CCT was thickest to thinnest in the order of ORBscan II, Pentacam HR, and CASIA SS-1000 (p < 0.05). No significant differences in Km values were examined between CASIA SS-1000 and Pentacam HR, whereas ORBscan II overestimated Km with a statistically significant difference compared to the other two devices. @*Conclusions@#High level of agreement was found between CASIA SS-1000 and Pentacam HR for anterior parameters, including ACD, CCT, and Km, suggesting interchangeability. However, ORBscan II measurements differed considerably with the measurements obtained from the other two devices; therefore, it should not be used interchangeably. However, further studies with repeatability test should be considered in order to elucidate the reliability of each device.
RESUMEN
Purpose@#The purpose of this study was to develop a video education program (VEP) for the caregivers and to verify its effectiveness on the maintenance of a peripheral intravenous catheter (PIVC) among hospitalized children. @*Methods@#The VEP was developed through a literature review, educational need assessment of caregivers, and interviews with pediatric nurses, and validation of an expert group. The effectiveness of the VEP was tested on 102 caregivers and their children in a children’s hospital at D city. A nonequivalent control group pretest-posttest design was used in which different types of intervention were given to caregivers in intervention group (n=51) and control group (n=51). All caregivers received brief verbal information about the PIVC maintenance. The intervention group was additionally provided with VEP using a smartphone. Data were analyzed using SPSS/Win 21.0 program. @*Results@#The caregivers’ knowledge score on PIVC maintenance in the intervention group was significantly higher than that of the control group. The numbers of flushing in case of blockage of PIVC and gauze dressing change of the intervention group was significantly lower than those of the control group. @*Conclusion@#These results suggest that the VEP developed in this study can be useful for the maintenance of PIVC among hospitalized children.
RESUMEN
Purpose@#The purpose of this study is to identify the effects of organizational commitment (OC) and perceived patient safety culture (PPSC) on patient safety nursing activities (PSNA) among nurses in comprehensive nursing care units. @*Methods@#Participants were 173 nurses working at five general hospitals in Chungcheong area. Data were analyzed using descriptive statistics, x2 test, t-test, ANOVA, Pearson’s correlation coefficient, and multiple regression analysis with SPSS/WIN 23.0 programs. Results: The mean scores of the OC and PPSC were 3.28±0.50 and 3.85±0.35, respectively. The mean score of PSNA was 4.55±0.41, and PSNA was significantly different by the experience of participating in hospital’s safety culture campaigns (t=2.70, p=.008). The results of the multiple regression analysis showed that ‘patient safety knowledge and attitudes’ (β=.27, p=.006) and ‘unpunished environment to error’ (β=.22, p=.004) as the sub-categories of PPSC were affecting factors on PSNA with an explanatory power of 26.0% (F=6.40, p<.001). @*Conclusion@#The results of this study suggest that in order to promote PSNA among nurses in comprehensive nursing care units, it is necessary to develop a program to enhance patient safety-related knowledge and attitudes. In addition, the hospital's organizational efforts such as operating safety campaigns and creating an unpunished environment to error should be needed.
RESUMEN
Purpose@#The efficacy of using preservative-free 0.15% sodium hyaluronate eyedrops for dry eye disease after femtosecond laser- assisted cataract surgery (FLACS) was evaluated. @*Methods@#This prospective randomized study was conducted on patients with dry eye who were scheduled for FLACS among those with Tear Film & Ocular Surface Society Dry Eye Workshop II Dry Eye Levels 1 and 2. In total, 37 eyes scheduled for FLACS were randomized to the treatment group (n = 19) or control group (n = 18). Corneal and conjunctival fluorescein staining (CFS), tear breakup time (TBUT), Schirmer I test (SIT) value, ocular surface disease index (OSDI), meibomian gland evaluation result, and lipid layer thickness were evaluated for all patients, preoperatively and at 1 and 3 months postoperatively. @*Results@#In the treatment group, the OSDI and CFS scores were significantly lower at 3 months postoperatively than at baseline, but the TBUT and SIT values were significantly increased. In the control group, TBUT was significantly shorter at 3 months postoperatively than at baseline, SIT values were significantly decreased at 1 and 3 months postoperatively compared with the baseline, and meibum quality was significantly aggravated at 1 month postoperatively compared with the baseline. In the treatment group, OSDI improved significantly from baseline at 1 and 3 months. TBUT increased significantly in the treatment group at postoperative 3 months. Meibomian gland quality showed clinically better results in the treatment group than in the control group at postoperative 3 months. There were no significant differences in corneal and CFS, lipid layer thickness, and other dry eye disease parameters between the treatment and control groups. @*Conclusions@#Preservative-free 0.15% sodium hyaluronate eyedrops were effective for improving dry eye symptoms and tear film stability after FLACS.
RESUMEN
Purpose@#The purpose of this study was to develop a video education program (VEP) for the caregivers and to verify its effectiveness on the maintenance of a peripheral intravenous catheter (PIVC) among hospitalized children. @*Methods@#The VEP was developed through a literature review, educational need assessment of caregivers, and interviews with pediatric nurses, and validation of an expert group. The effectiveness of the VEP was tested on 102 caregivers and their children in a children’s hospital at D city. A nonequivalent control group pretest-posttest design was used in which different types of intervention were given to caregivers in intervention group (n=51) and control group (n=51). All caregivers received brief verbal information about the PIVC maintenance. The intervention group was additionally provided with VEP using a smartphone. Data were analyzed using SPSS/Win 21.0 program. @*Results@#The caregivers’ knowledge score on PIVC maintenance in the intervention group was significantly higher than that of the control group. The numbers of flushing in case of blockage of PIVC and gauze dressing change of the intervention group was significantly lower than those of the control group. @*Conclusion@#These results suggest that the VEP developed in this study can be useful for the maintenance of PIVC among hospitalized children.
RESUMEN
Purpose@#The purpose of this study is to identify the effects of organizational commitment (OC) and perceived patient safety culture (PPSC) on patient safety nursing activities (PSNA) among nurses in comprehensive nursing care units. @*Methods@#Participants were 173 nurses working at five general hospitals in Chungcheong area. Data were analyzed using descriptive statistics, x2 test, t-test, ANOVA, Pearson’s correlation coefficient, and multiple regression analysis with SPSS/WIN 23.0 programs. Results: The mean scores of the OC and PPSC were 3.28±0.50 and 3.85±0.35, respectively. The mean score of PSNA was 4.55±0.41, and PSNA was significantly different by the experience of participating in hospital’s safety culture campaigns (t=2.70, p=.008). The results of the multiple regression analysis showed that ‘patient safety knowledge and attitudes’ (β=.27, p=.006) and ‘unpunished environment to error’ (β=.22, p=.004) as the sub-categories of PPSC were affecting factors on PSNA with an explanatory power of 26.0% (F=6.40, p<.001). @*Conclusion@#The results of this study suggest that in order to promote PSNA among nurses in comprehensive nursing care units, it is necessary to develop a program to enhance patient safety-related knowledge and attitudes. In addition, the hospital's organizational efforts such as operating safety campaigns and creating an unpunished environment to error should be needed.
RESUMEN
Purpose@#The efficacy of using preservative-free 0.15% sodium hyaluronate eyedrops for dry eye disease after femtosecond laser- assisted cataract surgery (FLACS) was evaluated. @*Methods@#This prospective randomized study was conducted on patients with dry eye who were scheduled for FLACS among those with Tear Film & Ocular Surface Society Dry Eye Workshop II Dry Eye Levels 1 and 2. In total, 37 eyes scheduled for FLACS were randomized to the treatment group (n = 19) or control group (n = 18). Corneal and conjunctival fluorescein staining (CFS), tear breakup time (TBUT), Schirmer I test (SIT) value, ocular surface disease index (OSDI), meibomian gland evaluation result, and lipid layer thickness were evaluated for all patients, preoperatively and at 1 and 3 months postoperatively. @*Results@#In the treatment group, the OSDI and CFS scores were significantly lower at 3 months postoperatively than at baseline, but the TBUT and SIT values were significantly increased. In the control group, TBUT was significantly shorter at 3 months postoperatively than at baseline, SIT values were significantly decreased at 1 and 3 months postoperatively compared with the baseline, and meibum quality was significantly aggravated at 1 month postoperatively compared with the baseline. In the treatment group, OSDI improved significantly from baseline at 1 and 3 months. TBUT increased significantly in the treatment group at postoperative 3 months. Meibomian gland quality showed clinically better results in the treatment group than in the control group at postoperative 3 months. There were no significant differences in corneal and CFS, lipid layer thickness, and other dry eye disease parameters between the treatment and control groups. @*Conclusions@#Preservative-free 0.15% sodium hyaluronate eyedrops were effective for improving dry eye symptoms and tear film stability after FLACS.
RESUMEN
Purpose@#To evaluate the accuracy of the Kane formula for intraocular lens (IOL) power calculation in comparison with existing formulas by incorporating optional variables into calculation. @*Materials and Methods@#This retrospective review consisted of 78 eyes of patients who had undergone uneventful phacoemulsification with intraocular implantation at Severance Hospital in Seoul, Korea between February 2020 and January 2021. The Kane formula was compared with six of the existing IOL formulas (SRK/T, Hoffer-Q, Haigis, Holladay1, Holladay2, Barrett Universal II) based on the mean absolute error (MAE), median absolute error (MedAE), and the percentages of eyes within prediction errors of ±0.25D, ±0.50D, and ±1.00D. @*Results@#The Barrett Universal II formula demonstrated the lowest MAEs (0.26±0.17D), MedAEs (0.28D), and percentage of eyes within prediction errors of ±0.25D, ± 0.50D, and ±1.00D, although there was no statistically significant difference between Barrett Universal II-SRK/T (p=0.06), and Barrett Universal II-Kane formula (p<0.51). Following the Barrett Universal II formula, the Kane formula demonstrated the second most accurate formula with MAEs (0.30±0.19D) and MedAEs (0.28D). However, no statistical difference was shown between Kane-Barrett Universal II (p=0.51) and Kane-SRK/T (p=0.14). @*Conclusion@#Although slightly better refractory outcome was noted in the Barrett Universal II formula, the performance of the Kane formula in refractive prediction was comparable in IOL power calculation, marking its superiority over many conventional IOL formulas, such as HofferQ, Haigis, Holladay1, and Holladay2.
RESUMEN
Purpose@#To evaluate visual performance after bilateral implantation of an extended depth of focus (EDOF) intraocular lens (IOL). @*Methods@#This multicenter, prospective, observational study included 100 patients who underwent bilateral cataract surgery with a toric or non-toric EDOF IOL (Tecnis Symfony), and 96 patients completed the final assessment at 4 to 6 months. Binocular corrected distance visual acuity and uncorrected distance visual acuity (UDVA), uncorrected intermediate visual acuity (UIVA), and uncorrected near visual acuity (UNVA), spectacle independence, visual symptoms, and patient satisfaction were evaluated. @*Results@#Mean decimal visual acuity results showed a binocular corrected distance visual acuity of 1.10 ± 0.18, UDVA of 1.04 ± 0.17, UIVA of 0.96 ± 0.16, and UNVA of 0.68 ± 0.18. Binocular UDVA and UIVA were 0.8 (decimal) or better in 98% and 94% of patients, respectively. Binocular UNVA was 0.63 (decimal) or better in 76% of patients. Overall, 76% of the patients achieved spectacle independence across all distances, and more than 85% reported no or mild dysphotoptic phenomena. On a scale of 0 to 10, the median patient satisfaction score was 9 for far, 9.5 for intermediate, and 8 for near vision. @*Conclusions@#The Symfony EDOF IOL provided excellent distance, intermediate visual outcome, and functional near visual acuity. The visual results were associated with prominent levels of spectacle independence and patient satisfaction.
RESUMEN
Purpose@#To evaluate the clinical reliability of the Topolyzer Vario (Wavelight-Alcon, Erlangen, Germany), we compared threedifferent corneal topographers in terms of corneal refractive power. @*Methods@#The medical records of patients who visited Severance Hospital for corneal refractive surgery were retrospectivelyreviewed. Keratometric data of patients who underwent evaluations using the Pentacam HR (Oculus, Wetzlar, Germany),ORBscan II (Bausch & Lomb, Rochester, NY, USA), and Topolyzer Vario instruments on the same day were obtained. Flat keratometry(Kf), steep keratometry (Ks), mean keratometry (Km), astigmatism keratometry (Kastig), Cartesian astigmatism (J0), andoblique astigmatism (J45) values were calculated. The measurement values of the three devices were subjected to Pearson’scorrelation analysis and repeated measures analysis of variance (with Bonferroni correction); a Bland-Altman plot was alsocreated. @*Results@#The keratometric data of 80 eyes were included in the analysis and all of the keratometric measurements obtained bythe three devices showed significant correlations, i.e., good agreement. The Kf and Km measurements of the Pentacam HR wereflatter than those of the ORBscan II, and the Kf, Km, Ks, and J45 measurements were flatter than those of the Topolyzer Vario.However, there was no significant difference in keratometric values between the ORBscan II and Topolyzer Vario. Furthermore,the difference in corneal refractive power between the Pentacam HR and Topolyzer Vario was not clinically significant. @*Conclusions@#When measuring the corneal refractive power of patients without any history of corneal disorder or ocular surgery,the Topolyzer Vario is a clinically reliable device that shows similar performance to the ORBscan II and Pentacam HR.
RESUMEN
Purpose@#To assess the clinical efficacy of microblepharoexfolication using BlephEx™ (Scope Ophthalmics, London, UK) in meibomian gland dysfunction (MGD) patients. @*Methods@#We performed a prospective study involving 48 eyes of 24 patients who were diagnosed with MGD. All patients were treated with BlephEx™ for 8-10 minutes, and the ocular surface disease index (OSDI), tear break-up time (TBUT), Schirmer’s I test, corneal staining score, lid margin abnormality, MGD score, and lipid thickness layer using the Lipiview II (TearScience, Morrisville, NC, USA) were assessed before treatment and after one month. @*Results@#Significant changes were observed after microblepharoexfoliation using BlephEx™. The TBUT improved from 2.65 ± 1.16 to 3.77 ± 1.80 after 1 month (p < 0.001) and the OSDI improved from 38.83 ± 17.13 to 18.67 ± 15.01 after 1 month (p < 0.001). Before and after 1 month of treatment, the lid margin abnormalities were 2.98 ± 1.16 and 2.50 ± 1.01 (p < 0.001) and the MGD scores were 21.60 ± 6.95 and 18.02 ± 6.68 (p = 0.001), respectively. @*Conclusions@#BlephEx™ improved the patients’ ocular surface symptoms, MGD score, and TBUT. Using steroid eye drops, there was a synergistic effect in improvement. Therefore, using BlephEx™ may be suggested as a treatment option for MGD patients.
RESUMEN
Purpose@#To evaluate the biomechanical properties of corneas using a dynamic Scheimpflug analyzer (Corvis ST) after penetrating keratoplasty (PKP) and Descemet’s membrane stripping keratoplasty (DSEK). @*Methods@#The medical records of 11 eyes that had undergone PKP (PKP group) and 11 eyes that had undergone DSEK (DSEK group) from March 2017 to March 2018 and the results were compared with 20 eyes of the control group. All patients’ corneal biomechanical properties, including a deformation amplitude ratio of 2.0 mm (DA ratio 2.0 mm), integrated inverse radius (IntInvRad), stiffness parameter at first applanation (SP-A1), and Ambrosio relational thickness through the horizon meridian (ARTh) were measured and compared with those of the normal control group. In addition, biomechanically corrected intraocular pressure (bIOP) measured by the Corvis ST was compared with intraocular pressure measured by a Tono-Pen Applanation Tonometer (IOP-Tono-Pen). @*Results@#In the PKP group, the biomechanical properties using the Corvis ST showed a significantly lower DA ratio 2.0 mm, SP-A1, ARTh, and IntInvRad, compared with those of the control group. However, in the DSEK group, only ARTh was significantly lower than that of the control group. @*Conclusions@#Corvis ST can be used to measure the change of corneal biomechanical properties after corneal transplantation.
RESUMEN
Purpose@#The purpose of this study was to identify the factors influencing mothers’ intention to vaccinate their elementary-school sons against human papillomavirus (HPV). @*Methods@#The participants were 151 mothers of fourth- to sixth-grade boys at three elementary schools in Daejeon, Korea. The data were analyzed using SPSS for Windows version 25.0. Descriptive statistics, the independent t-test, one-way analysis of variance, the Mann–Whitney U test, Pearson correlation coefficients, and multiple regression analysis were used. @*Results@#The mothers’ score for intention to vaccinate their sons against HPV was 5.04 out of 7. Self-efficacy (β=.60, p<.001) and subjective norms towards HPV vaccination (β=.30, p<.001) were significant factors influencing mothers’ intention to vaccinate their elementary-school sons against HPV. These factors accounted for 81.0% of HPV vaccination intention among mothers (F=160.84, p<.001). @*Conclusion@#The results of this study suggest that to increase the HPV vaccination rate for elementary-school boys, it is necessary to develop intervention strategies to improve mothers’ self-efficacy and subjective norms towards HPV vaccination and to verify the effects of those strategies. This research provides a foundation for designing interventions to increase the HPV vaccination rate of elementary-school boys.
RESUMEN
Purpose@#To evaluate visual performance after bilateral implantation of an extended depth of focus (EDOF) intraocular lens (IOL). @*Methods@#This multicenter, prospective, observational study included 100 patients who underwent bilateral cataract surgery with a toric or non-toric EDOF IOL (Tecnis Symfony), and 96 patients completed the final assessment at 4 to 6 months. Binocular corrected distance visual acuity and uncorrected distance visual acuity (UDVA), uncorrected intermediate visual acuity (UIVA), and uncorrected near visual acuity (UNVA), spectacle independence, visual symptoms, and patient satisfaction were evaluated. @*Results@#Mean decimal visual acuity results showed a binocular corrected distance visual acuity of 1.10 ± 0.18, UDVA of 1.04 ± 0.17, UIVA of 0.96 ± 0.16, and UNVA of 0.68 ± 0.18. Binocular UDVA and UIVA were 0.8 (decimal) or better in 98% and 94% of patients, respectively. Binocular UNVA was 0.63 (decimal) or better in 76% of patients. Overall, 76% of the patients achieved spectacle independence across all distances, and more than 85% reported no or mild dysphotoptic phenomena. On a scale of 0 to 10, the median patient satisfaction score was 9 for far, 9.5 for intermediate, and 8 for near vision. @*Conclusions@#The Symfony EDOF IOL provided excellent distance, intermediate visual outcome, and functional near visual acuity. The visual results were associated with prominent levels of spectacle independence and patient satisfaction.