bluuebunny/crossref_metadata_2025_split huggingface dataset:
Year 1 of COVID-19 pandemic in India
Authors: Das Anthony Vipin , Kaliki Swathi 
Published: May 2024

PURPOSE:
The purpose of the study is to describe the impact of lockdown and unlock phases of the COVID-19 pandemic on the presentation of ocular and periocular tumors at a referral center in India.

MATERIALS AND METHODS:
This cross-sectional, hospital-based study included 5811 patients presenting between March 25, 2017, and March 31, 2021. The data on the patients diagnosed with ocular and periocular tumors in one or both eyes presenting during the lockdown and unlock phases were compared with the respective time periods in the previous 3 years before COVID-19.

RESULTS:
The patient numbers dropped by 85% (45/295) of pre-COVID-19 volumes during the lockdown phase. This was mainly because of a 33% reduction in patients requiring inter-state travel. There was complete recovery of the outpatient numbers to 105% (139/132) of pre-COVID-19 volumes by March 2021. This gradual incremental trend was seen in patients with malignant tumors (145%) and was lower in those with benign tumors (89%) than pre-COVID-19 volumes by March 2021. There was an increase in the patients presenting with malignant tumors (49%; P = 0.45) during the lockdown phase. The proportion of patients requiring inter-state travel showed a near-complete recovery to 88% of pre-COVID-19 distribution by March 2021.

CONCLUSION:
The 1st year of the COVID-19 pandemic saw a significant decline in the number of patients presenting with ocular and periocular tumors. There was an increase in the proportion of malignant tumors and a decrease in benign tumors during the lockdown phase. During unlock period, there was a near-complete recovery in the patients requiring inter-state travel to access eye care services.
Tuck in versus cauterisation of graft edge in pterygium management
Authors: Kodavoor Shreesha Kumar , Rathi Neha , Dandapani Ramamurthy 
Published: May 2024

PURPOSE:To compare and evaluate surgical outcome between tuck in and cauterisation in the management of primary pterygium.MATERIALS AND METHODS:Two groups of 56 eyes and 58 eyes with primary pterygium underwent pterygium excision with conjunctival autograft fixation by tucking in alone (Group 1) and with cauterization (Group 2), respectively. A retrospective comparative analysis was done between the two groups.RESULTS:This study included a total of 114 eyes in the final analysis. The recurrence was noted in 3 eyes in Group 1 (5.35%), whereas only 1 eye (1.72%) in Group 2. Other complications included graft edema in 25 eyes (44.64%), in Group 1 and 29 eyes (50%) in Group 2, subconjunctival hemorrhage seen in 28 eyes (50%) in Group 1 and 32 eyes (55.17%) in Group 2, graft retraction observed in 28 eyes (50%) in Group 1 and 13 eyes (22.4%) in Group 2, granuloma formation was seen only in one patient (1.72%) in Group 2, graft loss was observed in four patients (7.14%) in Group 1 and 2 patients (3.44%) in Group 2.CONCLUSION:Graft fixation in pterygium surgery using low-cost procedures with tuck in or cauterization proves to be tolerable, safe and successful method. An additional step of fixing the graft to the cut conjunctival margin using bipolar cautery proves to be safer.
Awareness and practice regarding use of digital devices and ocular health among Saudi adolescents
Authors: AlDarrab Abdulrahman 
Published: May 2024

PURPOSE:
To review the knowledge of ocular health and practices of digital device usage among adolescent Saudi Arabia population.

METHODS:
This cross-sectional web-based survey was conducted in 2021 at a university in central Saudi Arabia. We asked questions regarding demographics, knowledge related to computer vision syndrome (CVS), and the use of digital devices for participants’ daily activities. The acceptable grades of knowledge (“excellent” and “good”) and practice scores were associated with the determinants using the nonparametric method of analysis.

RESULTS:
Of 521 participating students, knowledge about CVS and its relation to digital device usage were excellent in 41 students (7.9%), good in 161 (39%), poor in 300 (57.6%), and very poor in 19 (3.6%). Twenty-eight (5.4%) students scored an “excellent” grade on practices for digital device usage, 216 (41.4%) scored “good,” and 277 (53.2%) scored “poor.” The knowledge score median was 1.0 (interquartile range 1.0; 2.0), and the practice score median was 6.0 (4.0; 9.0). Health studies students had better knowledge than other students (P = 0.004). Smartphone users had worse knowledge than users of other devices (P = 0.017). Females (P < 0.001) and health studies students (P = 0.004) were significantly associated with acceptable practices of using digital devices.

CONCLUSIONS:
Awareness of ocular health because of abuse of digital devices was poor among participating students. The practice of digital device use was not healthy and needed improvement through preventive measures and counseling.
An unusual rise in cases of assault in ophthalmic practice during COVID-19 lockdown in a tertiary care hospital
Authors: Shahid Erum , Fasih Uzma , Taqi Uzma , Jafri Asad Raza 
Published: May 2024

OBJECTIVE:
The objective of the study is to report an unusual rise in cases of assault with ocular injury and their medicolegal implications presenting in an eye department of a tertiary care hospital during COVID-19 lockdown.

MATERIALS AND METHODS:
A retrospective, observational case series was conducted in the Department of Ophthalmology, Abbasi Shaheed Hospital, Karachi. Data were retrieved from the medicolegal records of the patients from April 1, 2019, to July 31, 2019, and similar months in 2020. We included all the patients of assault with ocular injury as alleged, registered as medicolegal cases. Patients with accidental injuries were excluded from the study.

RESULTS:
There was 34.3% increase in cases of assault with ocular injury as alleged with 72.35% reduction in the outpatient department patients. The ratio of cases of assault in 2019 and 2020 is 1:4.62. The mean age of the patients in the lockdown year was 33.74 ± 11.9 standard deviation (SD) and in preCOVID year 2019 was 39.74 ± 15.9 SD. Blunt trauma was experienced by 57 (66.3%) and penetrating injury in 2 (2.3%) patients. Sixteen (18.6%) patients had no ocular involvement. Home was the place of assault in 32 (37.2%) and street in 27 (31.4%) individuals. Fist was the source of assault in 46 (53.3%) and rod or stick in 15 (17.4%) individuals.

CONCLUSION:
There is a fourfold increase in patients of assault during 4 months of COVID-19 lockdown in 2020 as compared to the same time period in 2019. Most of these patients were young age, male gender, and uneducated. The most common place of incident was home, and fist was the most common source of infliction. Most of the injuries were superficial and had minimum effect on visual acuity.
Analysis of orbitofacial anthropometry in children with pseudostrabismus
Authors: Kavitha V. , Mooss Vidya S. , Ravishankar H. N. , Heralgi Mallikarjun M. , Puliappadamb Haridas Mundot 
Published: May 2024

AIM:
The aim of the study was to analyze orbitofacial anthropometric parameters such as inner and outer canthal distances (ICD and OCD), palpebral fissure length (PFL), interpupillary distance (IPD), and canthal index (CI) in children with pseudostrabismus and to compare the measured IPD (mIPD) with calculated IPD (cIPD).

MATERIALS AND METHODS:
This was a prospective study of sixty children (6 months–18 years) with pseudostrabismus. ICD, OCD, PFL, and IPD were measured by digital Vernier caliper. The formula used was cIPD: 0.21+0.24 ICD+0.58°CD for males and 1.4+0.31 ICD+0.41°CD for females. Values measured by caliper were compared with that calculated by the formula. The formula used was CI: ICD × 100/OCD. Data were analyzed statistically.

RESULTS:
The mean age was 6.66 ± 3.57 years. Telecanthus was the most common finding (55%). The mean ICD and OCD in males were 30.89 ± 3.33 mm and 87.96 ± 8.09 mm and in females were 30.91 ± 3.05 and 86.22 ± 6.81 mm, respectively. The mean right eye PFL in males was 28.53 ± 2.63 mm and in females was 27.66 ± 2.22 mm and left eye PFL in males was 28.53 mm ± 2.63 and in females was 27.66 ± 2.22 mm. CI in males was 35.10 ± 1.65 and in females was 35.84 ± 1.71. Mean mIPD and cIPD: male – 55.37 ± 4.75 mm and 58.56 ± 5.34 mm, female – 53.32 ± 4.74 mm and 46.26 ± 3.71 mm. A good agreement was found between mIPD and cIPD.

CONCLUSION:
This study helps in documenting the anthropometric pattern of the orbitofacial parameters in children with pseudostrabismus which can act as reference data. This helps in the management of orbitofacial, craniofacial syndromes/deformities and lid reconstructive surgeries in retaining ethnical features and obtaining better function. In children’s spectacle frame 1 and lens making, where measuring IPD is difficult, cIPD can be a simple alternative.
Evaluation of lacrimal duct probing in adults with 0.02% and 0.04% mitomycin-C in primary acquired nasolacrimal duct obstruction
Authors: Saini Manu , Bajaj Mandeep Singh , Pushker Neelam , Meel Rachna , Saini Kulbhushan , Chaurasia Shweta , Mehta Aditi 
Published: May 2024

PURPOSE:
The purpose of the study is to evaluate the safety and efficacy of adjunctive use of mitomycin-C (MMC) using two different concentrations 0.2 mg/ml and 0.4 mg/ml for lacrimal duct probing to treat the nasolacrimal duct obstruction (NLDO) in adults.

SUBJECTS AND METHODS:
Prospective, an interventional comparative randomized pilot study of lacrimal duct probing conducted in the two study groups 0.02% MMC group (n = 30) and 0.04% MMC group (n = 30) in confirmed primary acquired NLDO of <1-year duration. Patency of lacrimal duct probing confirmed by syringing was compared at 1, 3, and 6-month follow-up in the two study groups, and corresponding subjective improvement of watering was appraised according to Kraft and Crawford grading.

RESULTS:
Patency of lacrimal duct probing in 0.02% MMC versus 0.04% MMC group was 66.66%/73.33% (P = 0.71) at 1 month, 46.66%/66.66% (P = 0.09) at 3 months and 46.66%/66.66% (P = 0.03) at 6-month follow-up, respectively. Subjective improvement of watering (no watering and mild watering) observed in 0.02% MMC versus 0.04% MMC group was 46.66%/73.33% (P = 0.03), at 1 month, 66.66%/83.33% (P = 0.13) at 3 months and 56.66%/73.33% (P = 0.17) at 6-month follow-up.

CONCLUSION:
Adult lacrimal duct probing with 0.04% MMC was associated with significant higher objective success rate than adult lacrimal duct probing with 0.02% MMC, without added concurrently side effects.
Outcomes of combined procedures compared to various single techniques for involutional entropion
Authors: Al-Mujaini Abdullah S. , Ul Kadir Syeed Mehbub , Maurya Rajendra Prakash 
Published: May 2024

BACKGROUND:To describe the outcomes of triangular tarsectomy and limited orbicularis myectomy with lower eyelid retractor plication compared to an everting sutures (ES) technique or lateral tarsal strip (LTS) procedure for the correction of lower eyelid involutional entropion.METHODS:A nonrandomized clinical study was carried out at two tertiary eye hospitals between January 2016 and December 2019. Patients in Group A underwent triangular tarsectomy and limited orbicularis myectomy with lower eyelid retractor plication. Group B had ES, and Group C underwent a LTS procedure. All participants were operated by one surgeon and underwent 1-year follow-up.RESULTS:A total of 78 patients in whom 84 eyelids were affected by lower eyelid involutional entropion were included in the study. The success rate was higher in Group A compared to Group B and Group C (100% vs. 86.7% vs. 95.8%;P< 0.05). Recurrence at a 1-year follow-up was noted in only four (13.3%) eyelids in Group B and one (4.2%) in Group C. However, patient’s in Group C experienced a higher frequency of minimal postoperative complications, including short-term pain (100%), tenderness on the lateral canthal area (100%), tightness of the eyelid (91.7%), and ecchymosis (54.2%) compared to Group A. Patients of Group B experienced minimal or no postoperative complications.CONCLUSIONS:Triangular tarsectomy and limited orbicularis myectomy with eyelid retractor plication may be considered the standard procedure for correcting lower eyelid involutional entropion with no recurrence compared to LTS technique or minimally invasive and cost-effective ES procedure.
Evaluating the application of argon laser on pterygium surgery: Report of 30 patients
Authors: Arish Mohammed , Dakkali Mohammad Sedigh 
Published: May 2024

BACKGROUND:
The recurrence rate plays a key role in using various treatments of pterygium. This study assessed the effectiveness of argon laser therapy before the excision of pterygium on the recurrence rate.

MATERIALS AND METHODS:
The eyes (n = 60) of patients (n = 30) were divided into two groups based on the treatment. All eyes had undergone pterygium excision with the bare sclera technique. Three weeks before surgery, an argon laser was applied to 30 eyes. Patients have been followed up for 1 year, and the progression of pterygium has been evaluated at days 1, 7, 14, and 30, and then, every 2 months until month 6 and then every 3 months until month 12. Recurrence was defined as more than 1 mm growth of pterygium from the limbus.

RESULTS:
In the group with adjuvant argon laser therapy, the mean size of pterygium was 3.7 ± 0.47 mm before surgery and 2.3 ± 0.98 after 12 months (P = 0.001). These were 3.8 ± 0.43 mm and 2.4 ± 1 mm in the other group (P = 0.001). The recurrence of the pterygium was 76% (23/30) in the group treated with an argon laser and 90% (27/30) in another group (P = 0.16). There was no correlation between pterygium sizes before surgery and the pterygium recurrence rate in both eyes (P = 0.272 [right] and 0.916 [left]).

CONCLUSION:
Argon laser therapy on pterygium before surgery cannot decrease its recurrence rate, but its application gives a good vision and clarifies the surgery’s target area.
Surgical performance and the positivity rate for novel coronavirus (severe acute respiratory syndrome coronavirus 2) in an ophthalmic setup during the coronavirus disease 2019 pandemic
Authors: Alam Md. Shahid , Mistry Suraj , Das Sudipta , Mukherjee Suchetna , Kumar Amitabh , Rao Girish Shiva 
Published: May 2024

AIM:
To describe, the impact of ongoing coronavirus disease 2019 (COVID-19) pandemic on ophthalmic surgeries at a tertiary eye care center of East India during and after the lockdown, and the positivity rate for novel coronavirus (severe acute respiratory syndrome coronavirus 2 [SARS-CoV-2]).

MATERIALS AND METHODS:
A retrospective study of all ophthalmic surgeries performed during and after lockdown from April 1, 2020 to August 31, 2020, with comparison to the corresponding period in the previous year (2019) was done. Eligible patients were tested for novel coronavirus (SARS-CoV-2) preoperatively as per the institutional protocols.

RESULTS:
A total of 569 surgeries were performed during the study period compared to 3458 performed in 2019, (P = 0.00001). The maximum number of surgeries were performed in June (191, 33.57%) and July (189, 33.22%) and in the subspecialty of vitreo-retina (337, 59.23%) followed by cataract (101, 17.75%). The most common vitreoretinal procedures were intravitreal injections (223, 66.17%) and retinal detachment surgery (56, 16.62%). Emergency surgeries performed were 30 (5.275%) compared to 76 (2.20%) during the same duration in the previous year (P = 0.00004). Ninety-four (16.52%) cases were screened for COVID-19. A total of 10 (10.64%) cases tested positive for SARS-CoV-2. Only one of these cases was symptomatic.

CONCLUSION:
There was a drastic decline in the number of both elective and emergency surgeries during and after the lockdown period of the COVID-19 pandemic when compared to the corresponding previous year duration. The maximum number of surgeries was performed in the vitreoretinal subspecialty. The positivity rate for SARS CoV-2 amongst the patients tested was 10.64% and most of these patients were asymptomatic.
Evaluation of aberrometry changes following strabismus surgery in patients with horizontal strabismus
Authors: Sharifi Mohammad , Es’haghi Acieh , Kiarudi Mohammad Yaser 
Published: May 2024

BACKGROUND:
The aim is to investigate the change in aberrations following strabismus surgery in patients with horizontal strabismus.

MATERIALS AND METHODS:
This prospective study included patients who underwent surgery for horizontal strabismus. The patients were assessed preoperatively and 1 month and 3 months after the surgery, in terms of logMAR best-corrected visual acuity, eye deviation, spherical equivalent refractive error, tomographic and aberrometric corneal changes. Corneal tomography was performed using Orbscan II device. Wavefront analyses were performed using Bausch and Lomb Zywave II.

RESULTS:
A total of 25 patients (48 eyes) with exotropia or esotropia were entered in this study. Mean values of exotropia in the distance and near deviations were reported as 31.42 ± 7.13 and 28.82 ± 6.96 prism diopters (PD), respectively. Mean scores of esotropia in the distance and near deviations were 25.22 ± 5.41 and 30.45 ± 9.4 PD, respectively. Evaluation of irregularity in 5 mm zone, horizontal coma, spherical aberration changes, and root mean square of higher-order aberrations (HOAs) in 6 mm, and HOA w/o Z 400 changes showed that there was a significant difference before the intervention and 1 month after the surgery (P < 0.05). However, no difference was observed in the aforementioned variables before and 3 months after the intervention (P > 0.05).

CONCLUSIONS:
Results of the present study indicated a transient increase in HOAs and corneal irregularity following strabismus surgery on horizontal eye muscles that returned to the baseline after 3 months.
Intravitreal Ozurdex has no short term influence on choroidal thickness and vascularity index in eyes with diabetic macular edema
Authors: Rishi Pukhraj , Verma Aditya , Akhtar Zeeshan , Agrawal Rupesh , Agrawal Ashutosh , Kalluri Bharat Rekha Priya , Rishi Ekta 
Published: May 2024

AIM:
To analyze choroidal parameters in eyes with diabetic macular edema (DME) treated with intravitreal Ozurdex.

PATIENTS AND METHODS:
Twenty eyes of 14 patients were included in this prospective study. Optical coherence tomography images were obtained before and 8–10 weeks after intravitreal Ozurdex injection; binarized and subfoveal choroidal thickness (SFCT) and choroidal vascularity index (CVI) were calculated.

RESULTS:
Mean SFCT (treatment naïve; 242.22 ± 32.87 reduced to 218.10 ± 22.10, P = 0.158 and previously treated; 330.4 ± 56.72 reduced to 328.93 ± 50.55, P = 0.833) and mean CVI (treatment naïve; 0.64 ± 0.03 changed to 0.65 ± 0.04, P = 0.583 and previously treated; 0.65 ± 0.05 reduced to 0.64 ± 0.03, P = 0.208) showed no significant change.

CONCLUSION:
Intravitreal Ozurdex showed no significant effects on SFCT and CVI in eyes with DME over short term. Larger studies with longer follow-up may allow a better understanding.
Accommodative esotropia
Authors: Sreelatha OK , Al-Marshoudi Hajar Ali , Mameesh Maha , Al Zuhaibi Sana , Ganesh Anuradha 
Published: May 2024

AIM:The aim of this study is to determine the outcome of accommodative esotropia (ET) and influencing factors in young Omani children.SUBJECTS AND METHODS:In this retrospective cohort, children diagnosed with accommodative ET who had followed up in a tertiary hospital from 2006 to 2011 were identified. Parameters studied included cycloplegic refraction and its change with time, ocular alignment, binocularity, visual acuity (VA), amblyopia, and requirement for surgery.RESULTS:A total of 51 patients were identified. Twenty-four patients were diagnosed with fully accommodative ET (FAET) and 27 with partially accommodative ET (PAET). The mean (± standard deviation [SD]) age of onset and reporting were 2.6 (±1.58) and 3.2 (±1.84) years in the two groups, respectively. The mean (SD) cycloplegic refraction at presentation was 4.50 (±1.66) in the FAET group and 3.65 (±1.67) in the PAET group. Anisometropia was present in 28% of patients. The mean follow-up period was 4.9 years. The following were detected in the final visit. A reduction in amblyopia from 43% to 6% of patients, binocularity in 75% of patients, and a mean increase of 0.64 (±1.3) D in cycloplegic refraction from the first visit (P= 0.005). The mean angle of deviation at near and distance was 29.86 (±15.21) and 17.80 (±10.14) prism diopters, respectively, in FAET patients and 30.15 (±14.83) and 29.53 (±15.53), respectively, in PAET patients. Thirty-seven percent of the PAET patients underwent surgery within 5 years from diagnosis. All participants in this cohort continued to wear glasses in the last follow-up visit.CONCLUSION:Most children with refractive accommodative ET have an excellent outcome in terms of VA and binocular vision. The PAET group was characterized by delayed reporting, the presence of anisometropia, and lower hypermetropia. Further study is required to determine the possibility of weaning glasses in FAET patients.
Evaluation and comparison of transportation and centering ability of various pathfiles in the second mesiobuccal canal of maxillary first molars
Authors: Gharechahi Maryam , Bagherpour Ali , Behzadi Shima , Gharechahi Mohammad Mehdi , Peighoun Maryam 
Published: May 2024

Introduction: In root canal treatment, the glide path process
is considered

a primary action to increase the safet
y and efficiency of nickel–titanium rotary files and prevent preparation errors. The present study aimed to evaluate and compare different glide paths in terms of transportation and centering ability of the curved, narrow second mesiobuccal (MB2) canal of maxillary first molars using cone-beam computed tomography (CBCT).

Materials and Methods:
First, periapical radiographs and CBCT were obtained from extracted maxillary first molars, and 125 teeth, whose mesiobuccal root curve was in the medium range (a curve angle of 20°–40°) and had separate MB2 canal, were selected. However, teeth <17 mm and more than 21 mm in length were excluded from the study. Afterward, the access cavity was prepared with a round diamond bur, and the MB2 canal was negotiated using a manual size 6–8 C-pilot. In the next stage, were randomly divided to five groups of 25, and each group was prepared by using one of the files of ProGlider, R-Pilot, Hyflex EDM, WaveOne Gold Glider, and C-Pilot. Following that, CBCT was taken from all teeth again, and the levels of canal transportation and centering ability were evaluated at five levels (distances of furcation, 1 and 2 mm from the furcation, the crest of the curvature, and 1 mm from the apex).

Results:
In this study, there was no statistically significant difference in canal transportation and centering ability among five PathFile systems in all sections (P > 0.05).

Conclusions:
All five PathFile systems carry out Glide path preparation similarly and appropriately in terms of canal transportation and centering ability.