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1.
PLoS One ; 19(6): e0304685, 2024.
Article in English | MEDLINE | ID: mdl-38900736

ABSTRACT

The nonlinear effects of thermal radiation on the free convection flow of certain nanofluids along a heated wall are studied numerically using an original finite-difference method. Nanofluids are used to improve the performance of flat and curved integrated photovoltaic modules. The partial differential equations governing the flow are difficult to solve due to the strong non-linearity of the radiative term. In contrast to previous studies, the problem is solved directly without linearization by Rosseland's nonlinear approximation. The proposed numerical method is validated with results from the literature. The effects of nonlinearity and various physical parameters such as time, volume fraction and radiation parameter on the velocity, temperature, Nusselt number and skin friction coefficient of the CuO-water nanofluid are analyzed and presented graphically. A comparative study between the solutions given by the linear and non-linear problems reveals that Rosseland's linear approximation is no longer valid when the effect of thermal radiation is significant. On the other hand, the non-linear model better reflects the physical phenomena involved in the cooling process. Finally, a comparison of the performance of five nanofluids (CuO, Ag, Al2O3, Cu and TiO2 in water) shows that the Cu-water nanofluid performs best, with a high heat transfer rate and low shear stresses.


Subject(s)
Nonlinear Dynamics , Nanotechnology/methods , Copper/chemistry , Models, Theoretical , Solar Energy , Hydrodynamics , Temperature
2.
Healthcare (Basel) ; 12(9)2024 Apr 29.
Article in English | MEDLINE | ID: mdl-38727474

ABSTRACT

BACKGROUND: Supervised exercise interventions tend to be more effective than unsupervised exercises or physical activity advice alone. However, people with type 2 diabetes may find it difficult to attend supervised exercise interventions due to several obstacles. Tele-exercise, or utilizing technology to deliver home-based exercise, might be a solution. OBJECTIVE: This scoping review aimed to explore clinical trials investigating the impact of tele-exercise interventions in individuals with type 2 diabetes Methods: Four electronic databases were searched for the period up to January 2024 for clinical trials investigating the impact of tele-exercise on health-related outcomes in adults with type 2 diabetes. RESULTS: Seven trials involving 460 individuals with type 2 diabetes met the inclusion criteria. In these trials, combined aerobic and resistance exercise programs were the main types delivered remotely. To deliver such programs, both synchronous (n = 4) and asynchronous (n = 3) delivery modes were adopted. Regardless of the delivery mode, all tele-exercise interventions led to improvements in various factors related to type 2 diabetes and its complications, including glycemic control, blood lipids, body composition, functional capacity, muscle strength, and quality of life. The improvements were also found to be as effective as those of supervised exercise. CONCLUSIONS: Tele-exercise interventions seem to be feasible and as effective as supervised exercise interventions in terms of improving glycemic control, blood lipids, functional capacity, muscle strength, body composition, and quality of life for people with type 2 diabetes.

3.
J Surg Case Rep ; 2024(3): rjae121, 2024 Mar.
Article in English | MEDLINE | ID: mdl-38463741

ABSTRACT

Corticosteroids are crucial for treating inflammatory ocular conditions. The development of dexamethasone revolutionized targeted ocular therapy. Ozurdex, a dexamethasone implant, effectively treats various eye conditions but carries risks such as implant migration. This is a case of anterior segment migration of intravitreal dexamethasone implant, Ozurdex, in a patient with scleral fixation intraocular lens implant in whom conservative management with supine positioning and pharmacologic pupil dilation can help retain the implant back in the vitreous. Patients at high risk of Ozurdex migration should avoid its use. Educate patients on the risk of implant migration and signs of migration to present immediately to an ophthalmology emergency department to avoid corneal damage. It is essential to identify high-risk patients before considering Ozurdex migration. In some cases, conservative management can be initiated while preparing for surgical removal.

4.
PLoS One ; 19(3): e0299492, 2024.
Article in English | MEDLINE | ID: mdl-38470877

ABSTRACT

INTRODUCTION: Infectious Keratitis is one of the most common ocular emergencies seen by ophthalmologists. Our aim is to identify the risk factors and clinical features of Acanthamoeba Keratitis (AK). METHODS: This retrospective chart review study was conducted at King Khaled Eye Specialist Hospital, Riyadh, Saudi Arabia, and included all the microbial keratitis cases, male and female patients of all ages. The main outcome is the differentiation between various microbial keratitis types. RESULTS: We included 134 consecutive eyes of 126 persons. We had 24 cases of acanthamoeba keratitis, 22 bacterial keratitis, 24 fungal keratitis, 32 herpetic keratitis, and 32 bacterial co-infection. Contact lens wear was found in 33 eyes (24.6%). Among acanthamoeba keratitis patients, 73% were ≤ 39 years of age, and 73% were females (P <0.001). Also, in AK cases, epithelial defect was found in all cases (100%), endothelial plaques were found in 18 eyes (69.2%), 12 cases had radial keratoneuritis (46.2%), and ring infiltrate was found in 53.8% of AK cases. CONCLUSIONS: We determined the factors that increase the risk of acanthamoeba infection and the clinical characteristics that help distinguish it from other types of microbial keratitis. Our findings suggest that younger females and patients who wear contact lenses are more likely to develop acanthamoeba keratitis. The occurrence of epitheliopathy, ring infiltrate, radial keratoneuritis, and endothelial plaques indicate the possibility of acanthamoeba infection. Promoting education on wearing contact lenses is essential to reduce the risk of acanthamoeba infection, as it is the most significant risk factor for this infection.


Subject(s)
Acanthamoeba Keratitis , Bacterial Infections , Contact Lenses , Humans , Male , Female , Acanthamoeba Keratitis/epidemiology , Retrospective Studies , Cornea , Contact Lenses/adverse effects , Bacterial Infections/complications , Risk Factors
5.
Int J Gen Med ; 16: 4873-4881, 2023.
Article in English | MEDLINE | ID: mdl-37916193

ABSTRACT

Background: In cases of atopy, IgE antibodies are formed in reaction to certain environmental factors like house dust mites, pollen, or even food allergens. Some studies have shown an association between atopic diseases and keratoconus. This study aims to determine the prevalence of atopy and its associated factors among keratoconus patients. Materials and Methods: A cross-sectional study was conducted among the Jazan population attending ophthalmology clinics regardless of their sex. Data collection started in August 2020 and finished in mid-June 2021. The sample was selected using the convenience sampling technique, and the total sample size was 83 participants. Data were collected via a questionnaire-based interview that contained 46 questions in the Arabic language. The data collected were analyzed using SPSS software. Results: Family history is the leading predisposing factor for keratoconus (P < 0.001). Also, eye rubbing was a significant (P < 0.015) trigger for keratoconus. However, other factors, including demographic factors such as gender and atopic conditions, did not have any significant association. Conclusion: A combination of genetic and environmental factors is the leading cause of the development of keratoconus; however, family history is the most influential factor, followed by eye rubbing.

6.
Clin Ophthalmol ; 17: 3629-3636, 2023.
Article in English | MEDLINE | ID: mdl-38026595

ABSTRACT

Purpose: The study aims to assess the perception of optical spectacles use among the Ha'il region population in Saudi Arabia. Patients and Methods: A cross-sectional survey was distributed via various social media applications to the residents of the Ha'il region. An online questionnaire was designed and included informed consent and questions assessing the participants' perceptions about wearing eyeglasses, contact lenses, and general eye health. Results: 32.4% of the participants think that long-term eyeglasses wearing worsens vision, and 43% think eyeglasses wearing improves vision. 75.2% believe that long-term use of glasses could cause lifetime dependency on eyeglasses. Regarding contact lenses, 45.9% believe that long-term wearing worsens vision, and 24.1% think long-term wearing of contact lenses improves vision. 60% think long-term use of lenses causes lifetime dependency on those contact lenses. Conclusion: Our results highlighted the misconceptions among the study population regarding wearing prescribed eyeglasses and contact lenses. Thus, education programs and media are warranted to correct the misconceptions about spectacles and raise the awareness about refractive errors and treatment options.

7.
Sci Rep ; 13(1): 11223, 2023 07 11.
Article in English | MEDLINE | ID: mdl-37433860

ABSTRACT

To report the association of autoimmune polyglandular syndrome type 1 (APS1) with cone dystrophy in a large Saudi family. This is a Retrospective chart review and prospective genetic testing and ophthalmic examination of a large multiplex consanguineous family. Genetic testing was performed on 14 family members, seven of whom had detailed ophthalmic examinations. Medical history, ocular history and evaluation, visual field testing, full-field electroretinogram (ERG), and Whole Exome Sequencing (WES) results were analyzed. Three family members were homozygous for c.205_208dupCAGG;p.(Asp70Alafs*148) in AIRE and homozygous for c.481-1G>A in PDE6C. One additional family member was homozygous for only the AIRE variant and another additional family member was homozygous for only the PDE6C variant. All patients with homozygosity for the PDE6C variant had cone dystrophy, and all patients with homozygosity for the AIRE variant had APS1. In addition, two of the family members who were homozygous for the PDE6C and AIRE variants had reduced rod function on ERG. We report the co-inheritance for APS1 and PDE6C-related cone dystrophy, an unusual example of two seemingly independent recessive conditions coinciding within a family. Dual molecular diagnosis must be taken into account by ophthalmologists facing unusual constellations of findings, especially in consanguineous families.


Subject(s)
Cone Dystrophy , Humans , Prospective Studies , Retrospective Studies , Genetic Testing , Homozygote
8.
Int J Gen Med ; 16: 2441-2450, 2023.
Article in English | MEDLINE | ID: mdl-37333876

ABSTRACT

Purpose: Dry eye disease (DED) is a common ocular problem that worsens patients' quality of life. This study aimed to assess DED prevalence and risk factors among medical students at the University of Tabuk. Patients and Methods: This is an analytical, cross-sectional, survey-based study. An online questionnaire was distributed by email to all medical students at the University of Tabuk. A self-administered McMonnies questionnaire was used in the assessment. Results: We included 247 medical students who completed the questionnaire. Most participants were females (71.3%) and were <25 years old (85.8%). DED prevalence rate was 18.2% (95% CI=13.61% to 23.61%). Furthermore, DED was found to be significantly associated with the presence of irritation of eyes when waking up from sleep (OR=19.315), sleeping with partially opened eyes (OR=19.105), redness and irritation of the eyes when swimming in chlorinated fresh water (OR=7.863), and having prescription eyedrops or other dry eye treatments (OR=3.083). Conclusion: Our study at the University of Tabuk found that 18.2% of medical students had dry eye disease and identified the associated risk factors. Early diagnosis and treatment are crucial to prevent complications due to the high prevalence of DED.

9.
Healthcare (Basel) ; 11(12)2023 Jun 17.
Article in English | MEDLINE | ID: mdl-37372908

ABSTRACT

The use of tele-rehabilitation (TR) in type 2 diabetes mellitus (T2DM) following COVID-19 infection remains unexplored. Hence, the purpose of this study was to determine the clinical effects of tele-physical therapy (TPT) on T2DM following COVID-19 infection. The eligible participants were randomized into two groups, a tele-physical therapy group (TPG; n = 68) and a control group (CG; n = 68). The TPG received tele-physical therapy for four sessions a week for eight weeks, and the CG received patient education for 10 min. The outcome measures were HbA1c levels, pulmonary function (forced expiratory volume in the first second (FEV1), forced vital capacity (FVC), FEV1/FVC, maximum voluntary ventilation (MVV), and peak exploratory flow (PEF)), physical fitness, and quality of life (QOL). The difference between the groups in HbA1c levels at 8 weeks was 0.26 (CI 95% 0.02 to 0.49), which shows greater improvement in the tele-physical therapy group than the control group. Similar changes were noted between the two groups after 6 months and at 12 months resulting in 1.02 (CI 95% 0.86 to 1.17). The same effects were found in pulmonary function (FEV1, FVC, FEV1/FVC, MVV, and PEF), physical fitness, and QOL (p = 0.001). The reports of this study show that tele-physical therapy programs may result in improved glycemic control and improve the pulmonary function, physical fitness, and quality of life of T2DM patients following COVID-19 infection.

10.
Article in English | MEDLINE | ID: mdl-37107888

ABSTRACT

A simple, valid, and reliable self-assessment fall-risk questionnaire in Arabic is needed to significantly promote awareness and develop fall-prevention programs. This study translated and adapted the Fall Risk Questionnaire (FRQ) into Arabic and determined its validity and reliability among Saudi Arabian older adults in two phases: (1) cross-culturally adapting the FRQ into Arabic and (2) assessing the adapted questionnaire's psychometric properties in two sessions with 110 Arabic-speaking participants aged ≥65 years. Pearson's r showed that the Arabic FRQ had a significant moderate negative relationship with the Berg Balance Scale and fair-to-moderate positive correlations with Five Time Sit to Stand and Time Up and Go. The receiver operating characteristic curve indicated a significant area under the curve = 0.81. The cut-off score was 7.5 and associated with 73.7% sensitivity and 73.6% specificity. Internal consistency was estimated as good, with Cronbach's α = 0.77. Deletion of item 1 slightly increased Cronbach's α to 0.78. The Arabic FRQ demonstrated excellent test-retest reliability, with an intraclass correlation coefficient = 0.95 (95% CI: 0.92-0.97). It is highly valid and reliable in providing valuable data for evaluating fall risk in adults aged ≥65 years and for consulting a specialist for further investigation if necessary.


Subject(s)
Cross-Cultural Comparison , Humans , Aged , Saudi Arabia , Psychometrics , Reproducibility of Results , Surveys and Questionnaires
11.
PLoS One ; 18(3): e0281391, 2023.
Article in English | MEDLINE | ID: mdl-36897855

ABSTRACT

The efficiency of solar panels decreases as the temperature increases and heat dissipation becomes a serious problem in hot environments such as the Arabian desert. This paper investigates the use of a phase change material (PCM-OM37P) to maintain panel temperatures close to ambient. The enhancement of the GCL-P6/60265W solar panel efficiency was demonstrated at the University of Tabuk Renewable Energy and Energy Efficiency Center (REEEC). As these solar panel arrays are remotely monitored, we were able to demonstrate the validity of our cooling solution. During peak times, a drop voltage of at least 0.6V has been realized using the PCM for cooling the PV panel. This corresponds to a cooling temperature of 5 to 6°C. This difference in operating voltages between the PCM-cooled and the reference PV panels translates into a power enhancement percentage (PEP) of about 3%. The PEP value was underestimated due to the PV string configuration where the operating electrical current is taken as the average value for both PV panels.


Subject(s)
Cold Temperature , Solar Energy , Temperature , Phase Transition , Body Temperature Regulation , Renewable Energy
12.
Cureus ; 15(2): e34865, 2023 Feb.
Article in English | MEDLINE | ID: mdl-36923174

ABSTRACT

Sickle cell trait is considered a benign condition. Ophthalmic manifestations are infrequent but can result in significant visual deterioration. We present a case of a 33-year-old male, not known to have any medical illnesses, who presented to the ophthalmological emergency room complaining of a sudden onset of painless and profound left eye vision loss for 12 hours. The patient denied any medication use, past eye trauma, or surgery. On detailed ophthalmologic examination, the best-corrected visual acuity (BCVA) was 20/20 in the right eye and hand movement in the left eye. Dilated fundus examination of the left eye showed a central retinal artery occlusion (CRAO) with pale, white retinal swelling and a macular cherry-red spot. Fundus fluorescein angiography showed delayed arterial filling with persistently reduced macular perfusion. CRAO was diagnosed in an otherwise healthy young male. Systemic workup was negative except for protein electrophoresis, which showed sickle cell trait, and HbA1C was 7.8%. Later, atrophic macular changes with a pale optic disc were observed, and BCVA was reduced to light perception. CRAO in young patients amounts to diverse causes, which require extensive systemic workup. In addition, the concurrence of the sickle cell trait with diabetes mellitus might have a role in CRAO development.

13.
J Int Med Res ; 50(11): 3000605221137478, 2022 Nov.
Article in English | MEDLINE | ID: mdl-36416162

ABSTRACT

Retinal periphlebitis is a subtype of retinal vasculitis affecting the retinal veins. We report a case of bilateral branch retinal vein occlusion (BRVO) associated with idiopathic retinal periphlebitis and complicated by subfoveal hemorrhage (SFH). An 18-year-old woman presented with best-corrected visual acuity of 20/20 in the right eye and 20/30 in the left eye. Examination revealed bilateral retinal vascular sheathing predominantly involving the retinal veins and bilateral BRVO. Fundus fluorescein angiography revealed localized vascular leakage in the right eye and diffuse vascular leakage in the left eye. Spectral-domain optical coherence tomography showed mild nasal thickening with subfoveal fluid in the left eye. Oral steroids were started on a tapering dosage as well as oral methotrexate. A year later, she presented with regressed vascular sheathing in both eyes with 5/200 vision and SFH in the left eye. Pars plana vitrectomy, subretinal tissue plasminogen activator, intravitreal ranibizumab, laser photocoagulation, and gas injection were performed. The SFH resolved and the visual acuity improved to 20/100. Good vision was preserved in both eyes with no active inflammation. Timely management of SFH in idiopathic retinal periphlebitis can achieve a favorable visual outcome.


Subject(s)
Phlebitis , Retinal Vein Occlusion , Female , Humans , Adolescent , Retinal Vein Occlusion/complications , Retinal Vein Occlusion/drug therapy , Tissue Plasminogen Activator , Retina , Hemorrhage/complications
14.
J Clin Med ; 11(21)2022 Oct 27.
Article in English | MEDLINE | ID: mdl-36362578

ABSTRACT

Diabetes mellites (DM) is one of the most common systemic disorders in Saudi Arabia and worldwide. Diabetic retinopathy (DR) is a potentially blinding ophthalmic consequence of uncontrolled DM. The early detection of DR leads to an earlier intervention, which might be sight-saving. Our aim in this cross-sectional study is to assess patients' knowledge and practices regarding DR, and to detect the barriers for eye screening and receiving a check-up from an ophthalmologist. The study included 386 diabetic patients. One hundred and thirty-one patients (33.9%) had T1DM and 188 (48.7%) had T2DM. Most of the diabetic patients (73.3%) know that they must have an eye check-up regardless of their blood sugar level. DM was agreed to affect the retina in 80.3% of the patients, 56% of patients agree that DM complications are always symptomatic, and 84.5% know that DM could affect their eyes. The fact that blindness is a complication of diabetic retinopathy was known by 65% of the diabetic patients. A better knowledge was detected among patients older than 50 years of age (54.9%) compared to those aged less than 35 years (40.9%), which was statistically significant (p = 0.030). Additionally, 61.2% of diabetic patients who were university graduates had a significantly better knowledge in comparison to 33.3% of illiterate patients (p = 0.006). Considering the barriers to not getting one's eyes screened earlier, a lack of knowledge was reported by 38.3% of the patients, followed by lack of access to eye care (24.4%). In conclusion, there is a remarkable increase in the awareness of DR among the Saudi population. This awareness might lead to an earlier detection and management of DR.

15.
Article in English | MEDLINE | ID: mdl-36360788

ABSTRACT

Many physicians consider social media a good tool for building their brands and attracting patients. However, limited data exist on patients' perceptions of the value of social media in ophthalmology. Therefore, our objective was to examine how social media influences patients when choosing an ophthalmologist among social media users, and people's behaviors toward ophthalmologists' social media accounts. This was a cross-sectional study including 1086 participants. Males represented 77.3% of the sample. The majority of the participants (71.3%) were aged between 25 and 54 years. Regarding social media sites frequently checked, Twitter ranked first (75.3%), followed by Snapchat (52.8%) and YouTube (48.7%). The majority (92.3%) used social media sites at all times of the day. Concerning the importance of ophthalmologists' social media sites, around 36.3% considered it either very or extremely important. As regards the important factors about an ophthalmologist's social media site from participants' perspectives, medical information written by the ophthalmologist (45.5%) and recommendations by friends (45.4%) were the most common reasons. Around 21% of females, compared to 16.8% of males, perceived the ophthalmologists' social media sites as extremely important, p = 0.041. A quarter of participants aged between 18 and 24 years, compared to only 5.5% of those aged 65 and above, perceived the ophthalmologists' social media sites as extremely important, p = 0.018. In conclusion, a considerable proportion of the people who used social media described ophthalmologists' social media sites as very/extremely important in their choice of an ophthalmologist.


Subject(s)
Ophthalmologists , Ophthalmology , Social Media , Male , Female , Humans , Adult , Middle Aged , Adolescent , Young Adult , Cross-Sectional Studies
16.
Int J Surg Case Rep ; 98: 107583, 2022 Sep.
Article in English | MEDLINE | ID: mdl-36063767

ABSTRACT

INTRODUCTION: The hydrogel Scleral Buckle is a soft and pliable subtype of buckles which has been used to repair retinal breaks and detachments externally. This case represents an unusual late orbital complication of the implant. CASE REPORT: A 70 years old male patient presented with drooping right upper lid and eye misalignment, associated with foreign body sensation and discomfort. The patient underwent scleral buckle surgery for a rhegmatogenous retinal detachment 32 years before his presentation using a hydrogel MIRAgel® explant. Orbital imaging showed a large cystic lesion in the superolateral quadrant of the orbit indicating a fluid-filled explant. DISCUSSION: In patients who were treated with hydrogel MIRAgel® explant for retinal breaks or detachments, detailed ophthalmic history, particular past eye surgery history, and examination, orbital imaging, and good clinical documentation. Serious orbital and neurological conditions need to be ruled out carefully. CONCLUSION: Late orbital complications of hydrogel MIRAgel® explant might develop late after surgery and might represent a diagnostic challenge for ophthalmologists.

17.
Clin Pract ; 12(4): 491-500, 2022 Jul 05.
Article in English | MEDLINE | ID: mdl-35892439

ABSTRACT

Unilateral retinitis pigmentosa (URP) is a rare retinal dystrophy. We describe the clinical course of two patients with (URP) unilateral retinitis pigmentosa confirmed by genetic testing, indicating ciliary dysfunction. Methods: The methods used in this study included a detailed ophthalmic examination, multimodal retinal imaging, Goldmann visual fields, full-field electroretinography (ffERG) and targeted next-generation sequencing. Results: A 32-year-old female (patient 1) and 65-year-old male (patient 2) were found to have URP. ffERG showed a non-recordable response in the affected eye and a response within normal limits in the fellow eye of patient 1, while patient 2 showed non-recordable responses in the apparently unaffected eye and a profound reduction in the photopic and scotopic responses in the affected eye. Next-generation sequencing revealed novel compound heterozygous c.373 C>T (p.Arg125Trp) and c.730-22_730-19dup variants in AGBL5 in patient 1, and a novel hemizygous c.1286 C>T (p.Pro429Leu) in patient 2; both gene mutations were 0%. Segregation analysis was not possible for either of the mutations. Conclusion: This report expands the clinical and molecular genetic spectrum of URP.

18.
Ophthalmol Ther ; 11(2): 759-769, 2022 Apr.
Article in English | MEDLINE | ID: mdl-35152357

ABSTRACT

INTRODUCTION: The objective of this study was to assess the epidemiological characteristics, clinical features and visual outcomes of open globe eye injury (OGI) in Tabuk, Saudi Arabia. METHODS: A retrospective chart review of OGI patients who had undergone operative repair of their injuries in Tabuk, Saudi Arabia. The collected data included patients' demographics, duration between trauma and presentation and the mechanism of trauma, wound location, extent of injury, presence of intraocular foreign body, and initial and final visual acuity data. RESULTS: Sixty-three eyes of 63 patients who were admitted for traumatic globe rupture were included; 84.1% were males and 39.7% were of pediatric age. Delay in seeking medical care for > 24 h was recorded in 4.8% of patients. The most common (42.9%) mechanism was blunt trauma followed by sharp trauma (38.1%) and projectile trauma (9.5%); 55.6% had the injury in zone 1. Intraocular foreign body was reported in 9.5% of patients. Intraocular foreign bodies were significantly more common in adults (p = 0.018) compared to children. Poor visual acuity was noted in 77.8% of patients upon presentation and 60.3% on last visit. CONCLUSION: The incidence of OGI was more common in males. The most common cause of OGI was blunt injury, and half of the injuries were in zone 1. Visual outcomes are guarded for most patients with OGIs.

19.
J Multidiscip Healthc ; 15: 153-159, 2022.
Article in English | MEDLINE | ID: mdl-35082499

ABSTRACT

PURPOSE: This study aims to measure the knowledge levels toward retinopathy of prematurity (ROP) among pediatricians covering neonatal intensive care units (NICUs) in the major hospitals in Tabuk, Saudi Arabia. To our knowledge, this is the first report to assess the awareness level of ROP in the NICU pediatricians in the region. PATIENTS AND METHODS: This is a quantitative, non-experimental, cross-sectional, descriptive study using self-administered electronic questionnaires to assess the knowledge level among NICU pediatricians at the main hospitals of Tabuk city. We used a self-administer online validated knowledge, attitude, and practice (KAP) questionnaire. A scoring system was implemented in the data analysis, depending on the correct chosen answers on the KAP questionnaire, to present the ROP knowledge level in the participants. RESULTS: The study included 41 NICU pediatricians. Most of the participants' age exceeded 40 years (51.2%). The majority were recruited from either King Salman Military hospital (34.1%) or King Khalid hospital (31.7%). The average frequency of preterm infants seen per month exceeded 15 infants among 41.4% of the respondents. Most pediatricians recognized the important treatment modalities available for ROP (92.7%); however, only 24.4% of them could recognize that 32 weeks or less is the gestational age of the screening criteria for ROP. The overall knowledge score ranged between 4 and 10, out of a possible maximum of 12 with a mean ± SD of (6.68±1.47). The majority (75.6%) believe that the ROP treatment can successfully prevent blindness. CONCLUSION: Our study demonstrated that the NICU pediatricians have good knowledge about the treatment modalities of ROP. However, their knowledge about the inclusion criteria of ROP screening was insufficient. Thus, we highlighted the necessity of raising the awareness level and the strict application of the clinical guidelines among NICU pediatricians and healthcare workers involved in managing ROP.

20.
Ocul Oncol Pathol ; 8(3): 181-186, 2022 Nov.
Article in English | MEDLINE | ID: mdl-36938378

ABSTRACT

Introduction: Solitary uveal lesions confer a diagnostic challenge to ophthalmologists. Uveitic lesions most abundantly appear amelanotic and commonly involve the choroid. Most amelanotic choroidal lesions are either neoplastic or inflammatory in origin. In our study, we aimed to describe six uveitic granuloma cases, which were referred to a tertiary ophthalmology center as intraocular tumors. Methods: Retrospective chart review of 6 patients (7 eyes) who had uveitic granulomas and were referred to a tertiary ophthalmology center as having intraocular tumors. Results: Mean age on presentation was 47 ± 12.5 years. One lesion was involving the ciliary body only, five lesions had pure choroidal involvement, and one had ciliochoroidal involvement. Mean visual acuity on presentation was 1.7 ± 0.75 (Snellen = 20/1,000) and ranged from 20/80 to light perception. Mean basal diameter of all lesions was 7.7 ± 1.8 mm. Three lesions had moderate echogenicity, two lesions were low to moderate echoic, and one lesion had moderate to high echogenicity on ultrasonography. Three lesions were associated with retinal detachments. Five eyes showed an early hypofluorescence with late hyperfluorescence. Leakage of fluorescein at borders was noticed in 3 lesions. Final diagnosis was presumed intraocular tuberculosis in 4 patients, probable ocular sarcoidosis in 1 patient, and idiopathic solitary uveitic granulomas in 1 patient. Upon treatment, the vision improved to 0.3 ± 0.27 (Snellen = 20/40) and ranged from 20/20 to 20/100 after 4.7 ± 2.9 years of follow-up. Conclusions: Uveitic granulomas can demonstrate features of ocular tumors. Proper uveitis management leads to a favorable visual outcome and ocular preservation.

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