25 research outputs found
The reliability of trabeculectomy surgical videos on the internet for educational purposes in the changing world
No full textBackground and purpose of the study: The use of social media that facilitates access to surgical training is increasing among general practitioners/surgeons. The present study aimed to evaluate the educational quality of videos on social media and the medical education websites in terms of trabeculectomy surgery.Methods: In this cross-sectional and register-based study, the term trabeculectomy has been searched on 22 websites containing medical surgery training videos. Demographical features and descriptive statistics of videos are noted. All videos were evaluated independently by two ophthalmologists according to DISCERN, Journal of American Medical Association, and Global Quality scoring system. The main 11 steps of trabeculectomy surgery were taken into consideration in each video and Video Quality Score was determined based on these steps.The main findings: In total, 731 videos were watched and 634 were excluded and 97 videos were included in the study. The total quality of all videos according to DISCERN, JAMA, GQS, and VQS scores were 31.6 +/- 9.1 (poor quality), 1.3 +/- 0.4 (poor quality), 2.6 +/- 0.9 (fair quality), and 6.9 +/- 2.1 (poor quality) respectively. Only 6 of the 97 evaluated videos included all the steps of trabeculectomy surgery. Videos have longer duration, videos with narration or videos with descriptive subtitles were found to be significantly higher quality than those are not.Conclussion: The educational quality of internet videos may be far from the quality it should be and it is indisputable that it is necessary to be able to access surgical educational videos that are peer-viewed and whose quality is not doubted.(c) 2021 Published by Elsevier Ltd on behalf of Royal College of Surgeons of Edinburgh (Scottish charity number SC005317) and Royal College of Surgeons in Ireland
Accuracy of Different Lens Power Calculation Formulas in Patients With Mature Cataracts
No full textIntroduction To compare the prediction accuracy of lens power calculation formulas in patients undergoing mature cataract surgery. Methods A total of 90 operations involving the Alcon SA60AT IOL implant (Alcon, Geneva, Switzerland) were analyzed in terms of mean refractive prediction error (PE) and mean absolute prediction error (MAE) using backward calculation in a retrospective design. Results A negative PE was observed in SRK/T, Holladay 1, Holladay 2, Hoffer Q, Haigis, and Emmetropia Verifying Optical (EVO) formulas. In contrast, positive PEs were observed in Barrett Universal II (BAUII), Kane, and Radial Basis Function (RBF) formulas. Negative PE was observed with all formulas, except BAUII, in patients with a shallow anterior chamber depth (ACD). While the SRK/T, Holladay 1, BAU, Kane, and RBF formulas demonstrated positive PE, the Holladay 2, Hoffer Q, Haigis, and EVO formulas indicated negative PE. In patients with deep ACD, positive PE was observed in all formulas, barring Holladay 2 and EVO. No significant differences were identified between the formulas concerning MAE and percentages of 0.25 diopter (D), 0.50 D, 0.75 D, and 1.0 D across all study groups. Conclusion Although the new generation formulas provide very good results, achieving the best with a single formula is still impossible
Evaluation of the educational quality and reliability of YouTube videos addressing eyelid ptosis surgery
No full textPurpose: To evaluate the educational content, quality, and reliability of YouTube videos addressing anterior approach ptosis surgery. Methods: A search on YouTube using the term ptosis surgery was performed between March 20 and March 26 2021. The quality, reliability, and accuracy of the contents of 38 videos meeting the inclusion criteria were evaluated by two independent ophthalmologists using the DISCERN questionnaire and the Journal of the American Medical Association (JAMA) benchmark criteria. The Global Quality Score (GQS) and a surgical scoring system were used to assess the educational value of the content. Results: The mean DISCERN score was 32.8 +/- 10, and the mean JAMA score was 1.3 +/- 0.5, indicating poor quality; the mean global quality score was 3.1 +/- 1.1, indicating moderate quality; and the mean surgical score was 7.5 +/- 2.7, indicating moderate to good quality. The surgical, DISCERN, and GQS scores of the videos uploaded by physicians were significantly higher than those of the videos uploaded by private clinics (p = .015, p = .049, and p = .01, respectively). There was a significant positive correlation between the surgical, DISCERN, JAMA, and GQS scores (p < .001). A significant positive correlation was found between video duration and surgical score (p = .013), DISCERN score (p < 0.001), and GQS score (p < 0.001). Conclusion: Videos with known sources, uploaded by physicians, and supported by audio narration may be useful in obtaining educational information. However, the available videos are not a reliable source of educational information about ptosis surgery
Corneal dellen development after strabismus surgery
No full textThis study aimed to evaluate the frequency of corneal dellen development, the healing process, and associated factors that affecting the development and healing of corneal dellen formation after strabismus surgery. In this retrospective study, the records of 714 eyes of 1264 patients who underwent limbal approach strabismus surgery between January 2005 and January 2020 were examined and 47 eyes of 44 patients with corneal dellen were included in the study. Demographic features, ophthalmological examination findings, dellen occurrence and healing time, dellen localization, and the type of surgery were obtained from the medical records of the patients. Corneal dellen development rate was found to be 3.7%. A moderate positive correlation was determined between both mean dellen occurrence time (r = 0.387, p = .007), and mean dellen healing time (r = 0.376, p = .014) with age. In patients who underwent monocular two muscle surgery had significantly higher rates of dellen formation compared to patients who underwent single muscle surgery (p<0.001). Corneal dellen was significantly higher in eyes undergoing single muscle rectus resection surgery than single muscle rectus recession surgery (p < .001). It was observed that corneal dellen developed more frequently after resection surgery, developed earlier in younger patients, and heals later in elderly patients. Therefore, patients can be followed up closely, keeping in mind the development of dellen, especially after resection surgery
Case report of solar retinopathy related to partial solar eclipse
No full textIn this case report, we reported a patient with solar retinopathy due to direct look to the sun beam without using any protective equipment during a solar eclipse. The clinical presentation, fundus imaging, perimetry, optical coherence tomography (OCT), fundus autofluorescence (FAF), fundus fluorescence angiography (FFA) findings and follow-up period were evaluated in an 11-years old female patient who had a retinal tissue defect caused by exposure to sunlight with the naked eye. The complications of the disease depend on the duration of exposure to harmful rays and are usually benign. © 2023 Gazi Eye Foundation. All rights reserved
What Hundreds of Millions of Patients With Dry Eye Will Find on YouTube: A Quality and Reliability Research of the YouTube Videos
No full textPurpose: The aim of this study was to evaluate the demographic features, quality, and reliability of YouTube videos addressing dry eye disease (DED). Methods: The term dry eye disease has been searched on YouTube. The first 500 videos that emerged using the defined search term were evaluated. Duplicated-split videos, videos shorter than 60 seconds, videos with a language other than English or videos with an unintelligible English accent, and videos unrelated to DED were excluded. Video uploaders, types, origins, durations, and viewer interactions of the videos were noted. DISCERN, the Global Quality Score, and the Video Quality Score (created by the authors) were used to evaluate the video quality. Results: Of the 500 videos, 262 videos were excluded, and the remaining 238 videos were evaluated. Videos were of moderate quality on all 3 scoring systems. The medical institute and academic society videos had the highest quality (P < 0.05). The quality of videos uploaded by physicians was significantly lower than medical institute and academic society videos and was higher than the others (P < 0.05). User interactions and video duration were weakly positively correlated with the video quality (P < 0.05). Conclusions: Among YouTube videos on DED, only a minority are of good or excellent quality. Videos uploaded by medical institutes or academic societies scored higher in quality than those uploaded by physicians, which, in turn, scored higher than those uploaded by all others. User interactions were weakly correlated with quality values, suggesting user interactions are not good indicators of the quality of YouTube videos on DED
Evaluation of Clinical Findings, Optical Coherence Tomography, Fundus Fluorescein Angiography, and Indocyanine Green Angiography Imaging in Patients with Polypoidal Choroidal Vasculopathy
No full textObjectives: The aim of this study was to describe clinical findings as well as spectral-domain optical coherence tomography (SD-OCT), fundus fluorescein angiography (FA), and indocyanine green angiography (ICGA) findings of polypoidalchoroidal vasculopathy (PCV).Methods: This retrospective, observational case series included 144 eyes of 103 patients who were diagnosed with PCVbetween January 2014 and August 2016. Best corrected visual acuity, 90-diopter lens slit-lamp fundus biomicroscopyexamination findings, color fundus photography, SD-OCT, FA, and ICGA findings were evaluated at the time of diagnosis.Results: Sixty-six patients (93 eyes, 64.1%) were male and 37 (51 eyes, 35.9%) were female. Sixty-two (60.2%) patientshad unilateral involvement. The most common SD-OCT finding was retinal pigment epithelial detachment (PED). Red-orange subretinal lesions were seen in 20 eyes (13.9%). There was a single polyp in 21 (14.6%) eyes, and more than 1 polypin 123 (85.4%) eyes observed with ICGA imaging. The polyps were located in the peripapillary area in 10 (6.9%) eyes, themacular area in 91 (63.2%) eyes, and the extramacular area in 1 (0.7%) eye. A significant branching vascular network wasseen in the ICGA images of 112 (77.8%) eyes.Conclusion: In this study, the majority of patients were male, with unilateral macular polyps. A serous PED and an exudative pattern were the most common clinical manifestations. SD-OCT showed specific findings for PCV, but ICGA wasthe most useful test for diagnosis
Evaluation of Axial Length Changes after Combined Phacovitrectomy for Macula-off Rhegmatogenous Retinal Detachment
No full textObjectives: To evaluate the reliability of optical biometry for correct intraocular lens (IOL) power calculation in eyeswith macula-off rhegmatogenous retinal detachment (RRD) via comparing the axial lengths (AL) measured with opticalbiometry preoperatively and postoperatively.Methods: This retrospective study was conducted with 25 eyes of 25 patients who underwent combined surgery (phacoemulsificationand pars plana vitrectomy (PPV)) with the diagnosis of RRD with macular involvement. Best-correctedvisual acuity (BCVA), biomicroscopic examination, intraocular pressure measurement and full fundoscopic examinationwere performed in all patients. Axial length was measured using optical biometry in all patients. The AL measurementswere repeated in the postoperative third month in the patients using gas tamponade during vitreoretinal surgery and inthe third month after the silicone oil removal in patients using silicone-oil tamponade during vitreoretinal surgery.Results: The mean age of the patients was 61.60±7.33. Fifteen patients (60%) were female, and 10 (40%) were male.Postoperative BCVA values (0.40±0.28) were significantly higher than the preoperative BCVA values (0.14±0.22) (p<0.05).The preoperative mean value of AL was measured as 24.66±1.90 and the postoperative mean value of AL was 24.67±1.91.There was no statistically significant difference between the measured AL values in the preoperative and postoperativeperiods (p=0.258).Conclusion: Combined surgery (phacoemulsification and PPV) is a frequently applied method in RRD treatment. Thecorrect AL measurement is important for the removal of refractive errors due to AL measurement in patients with macula-off RRD. Optical biometry provides accurate results in these case
Comparison of macular thickness change by optical coherence tomography after uncomplicated cataract surgery in eyes with and without exfoliation syndrome
No full textPurpose To evaluate the effect of exfoliation syndrome (ES) on macular thickness after uncomplicated cataract surgery. Methods 87 patients (87 eyes) who underwent uncomplicated cataract surgery were included in the study. Optical coherence tomography (OCT) films were taken in addition to the routine ophthalmologic examination before the surgery and at postoperative 1st week, 1st, 3rd and 6th months. Mean macular thickness, central macular thickness and macular volume values obtained from the 6 x 6 mm macular map in the OCT measurements were recorded. The cases were divided into two groups as Group 1: cases without ES and Group 2: cases with ES. The macular values obtained from the OCT measurements of the two groups were compared with statistical methods. Results Eighty-seven eyes were included in the study; while 51 had no ES (Group 1), 36 had ES (Group 2). The mean age of all cases was 66.70 +/- 9.13 years. While the mean macular thickness, central macular thickness and macular volume were similar at the preoperative visit and the postoperative 1st week of all cases (eachpvalue > 0.05); these values were higher at the postoperative 1st, 3rd and 6th month compared to the preoperative and the postoperative 1st week values (eachpvalue 0.05). No statistically significant difference was observed between Group 1 and Group 2 in terms of macular volume, central macular thickness and average macular thickness in these periods. Conclusion Exfoliation syndrome has not been evaluated as a risk factor for an increase in macular thickness after uncomplicated cataract surgery
