ADULT MYOPES

Objectives: This study aimed to explore the correlation of central cornealthicknesses (CCT), mean keratometry (KM) and axial length (AL) to myopia degree in sphericalequivalent (SE) among Sudanese adults. Study Design: Cross sectional study. Setting:University Eye complex clinic and Makka Eye complex Omdurman. Period: April to October2015. Methods: Central Corneal Thickness (CCT), k-reading (KM), axial length and thedegree of refraction (SE) 0f 200 myopic eyes and 60 emmetropic eyes as a control groupwere measured. Results: Adult Sudanese females (57%) were found greater than males (43%)population; (χ 2 = 109.5, p = 0.000 ), most of the participants’ age was less than 25 years(χ 2 = 109.5, p = 0.000 ), and the mean myopic spherical equivalent (SE) was – 4.79 ± 2.55 D,ranging from -1.00 to -11.00 D. The mean CCT of the myopic group was 542.8 ±11.9 μm,while for the emmetropic group was 538.7 ±12.4 μm. The cornea were steeper in eyes withlonger axial length (r = 0.24, p =0.001). Eyes with higher myopic spherical equivalent hadlonger axial length (r =0.30, p <0.001). Mean keratometrys were steeper with increasing age(r= 0.24, p= 0.001). This study has shown that CCT has no correlation with degree of myopia(p= 0.46), gender (p= 0.99), and age (p= 0.07). The CCT, KM, and AL means for myopicparticipants were found significantly greater than emmetropic participants (p=0.000, 0.000,and 0.044 respectively. Conclusion: The females participants of myopia were higher rate thanmales, early adults’ age group were of higher rate myopic incident; there was no correlationbetween CCT and the degree of myopia, gender, and age. CCT, KM, and AL means for myopicwere found higher than emmetropic participant. Eyes with more myopic spherical equivalenthad longer axial length; corneal curvature mean becomes steeper with increasing age.

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Reference values of the central corneal thickness with different refractive errors for the adult Egyptian population

10.21203/rs.3.rs-29153/v1 ◽

2020 ◽

Author(s):

Amr A. Gab-Alla

Keyword(s):

Reference Values ◽

Central Corneal Thickness ◽

Corneal Thickness ◽

Cross Sectional Study ◽

Refractive Errors ◽

Spherical Equivalent ◽

Sectional Study ◽

Cross Sectional ◽

Egyptian Population ◽

The Mean

Abstract Background: To generate reference values of the central corneal thickness (CCT) with different refractive errors for the adult Egyptian population. Methods: A retrospective, observational, and cross-sectional study of 2200 eyes in 1166 subjects scheduled for LASIK, who came to private refractive eye center, Ismailia, Egypt. The study period was from January 2018 to January 2020. The subjects were divided into a broad range of myopia with spherical equivalent (SE) <-0.5D and hyperopia SE> +0.5D. Then, the myopic eyes divided into low (SE>-3.0D), moderate (SE-3.0D to >-6.0D), and high (SE<-6.0D). Similarly, the hyperopic eyes were divided into low (SE<+3.0 D) and moderate (SE+3.0D to <+6.0D) and high >+6.0D. The refractive error was measured by an auto-refractometer (Topcon, Tokyo Optical Co., Ltd., Japan), and CCT was measured using Sirius (CSO, Florence, Italy). Results: The data of 1100 myopic eyes in 556 subjects (30.5% males and 69.5% females) and 1100 hyperopic eyes in 610 subjects (33.6% males and 66.4% females). The mean+SD of CCT for the total myopic subjects was 531.98+32.92μm, range (406 to 636μm). The mean+SD of SE was -4.1±2.5D, range (-0.5 to -12.0D). The mean+SD of CCT for the total hyperopic subjects was 529±38.8μm, range (448 to 619 μm). The mean+SD of SE was +3.65+1.97D, range (+0.5 to +8.5D).Conclusion: In this study, the mean of CCT of the Egyptian population was 531.9 μm for myopic and 529μm for hyperopic subjects respectively. The myopic and hyperopic subjects show a reduction in CCT with age. Females have a thinner cornea than males, 23.6% of the myopic eyes, and 16.5% of the hyperopic eyes have CCT less than 500μm.

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Association between Diabetic Retinopathy and Chronic Periodontitis—A Cross-Sectional Study

Medical Sciences ◽

10.3390/medsci6040104 ◽

2018 ◽

Vol 6 (4) ◽

pp. 104 ◽

Cited By ~ 1

Author(s):

Veena H. R. ◽

Sribhargava Natesh ◽

Sudhir Patil

Keyword(s):

Diabetic Retinopathy ◽

Serum Creatinine ◽

Glycated Haemoglobin ◽

Cross Sectional Study ◽

Diabetic Patients ◽

Age Group ◽

Sectional Study ◽

Cross Sectional ◽

Chronic Inflammatory Condition ◽

The Mean

Periodontal disease (PD), a chronic inflammatory condition characterized by destruction of the supporting tissues of the teeth, increases the risk of complications in diabetics. Diabetic retinopathy (DR) is a microvascular complication of prolonged hyperglycaemia. There appears to be a similarity in the pathogenesis of DR and PD. Hence, this study aimed to investigate the association, if any, between DR and PD, correlate the severity of DR with the severity of PD, and investigate the association between glycated haemoglobin (HbA1c), serum creatinine and periodontal variables. The periodontal status of 200 adult diabetic patients in the age group of 30–65 years with varying severity of DR was assessed. Evaluation of the severity of PD was assessed by recording clinical parameters. Haematological investigations including glycated haemoglobin (HbA1c) and serum creatinine were estimated before the initiation of treatment for DR. A statistically significant association between the mean duration of diabetes mellitus (DM) and the severity of DR and PD was found. The severity of PD was directly correlated with the severity of DR. There was a significant association between the levels of HbA1c and serum creatinine and severity of DR and PD. There could be a plausible relationship between DR and PD. Further prospective studies on a larger population with longer follow-ups are required to ascertain whether PD and its severity directly affect the progression and severity of DR.

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Refractive Outcomes of Table-Mounted and HandheldAuto-Refractometers in Children: An Observational Cross-Sectional Study

10.21203/rs.3.rs-148950/v1 ◽

2021 ◽

Author(s):

müjdat karab ◽

sinem karabulut ◽

Aylin karalezli

Keyword(s):

Cross Sectional Study ◽

Spherical Equivalent ◽

Sectional Study ◽

Cross Sectional ◽

Refractive Outcomes ◽

Spearman's Rho ◽

Spearman’S Rho ◽

The Mean ◽

Mean Differences ◽

Cylinder Power

Abstract Background: To compare the refractive results of two autorefractors.Methods: We designed this study as an observational, cross-sectional study. We compared the mean spheric and cylinder power, spherical equivalent, Jackson cross-cylinder values, determined the limits of agreement (LoA), and evaluated reliability.Results: Nidek HandyRef-K autorefractor measured more astigmatism and myopia in terms of the mean cylindrical power (P<.001) and spherical equivalent (P=.024). Nidek HandyRef-K showed significantly more myopic results in subgroups with spherical power more than +1.50 Diopters (D) hyperopia and -3.00 D myopia (P=.031; P=.045; P=.026; respectively) and higher astigmatism in the subgroup with the cylindric power less than -1.00 D (P<.001). The mean differences and 95% LoA were 0.06 D ± 0.47 D (-0.82 D to 0.98 D) in spherical power, 0.08 D ± 0.28 D (-0.47 D to 0.64 D) in cylindrical power, 0.11 D ± 0.47 D (-0.81 D to 1.01 D) in spherical equivalent, 0.02 D ± 0.36 D (-0.73 D to 0.69 D) in Jackson cross-cylinder power at 0°, 0.005 D ± 0.54 D (-1.07 D to 1.06 D) in Jackson cross-cylinder power at 45°. There was a strong correlation for spherical power (Spearman’s rho=0.99, P<.001), cylindrical power (Spearman’s rho=0.88, P<.001), spherical equivalent (Spearman’s rho=0.98, P<.001).Conclusion: Nidek HandyRef-K showed more myopic results regarding spherical equivalent and cylindrical power. Nidek HandyRef-K showed significantly more myopia in spherical power more than +1.50 D hyperopia, -3.00 D myopia, and more prominent astigmatism in cylindrical power less than -1.00 D subgroups.

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Prevalence of otomycosis in Khouzestan Province, south-west Iran

The Journal of Laryngology & Otology ◽

10.1017/s0022215112002277 ◽

2012 ◽

Vol 127 (1) ◽

pp. 25-27 ◽

Cited By ~ 8

Author(s):

N Saki ◽

A Rafiei ◽

S Nikakhlagh ◽

N Amirrajab ◽

S Saki

Keyword(s):

Aspergillus Niger ◽

Cross Sectional Study ◽

Seasonal Distribution ◽

Age Group ◽

External Ear ◽

Sectional Study ◽

Penicillium Species ◽

Cross Sectional ◽

South West ◽

The Mean

AbstractBackground:This study aimed to investigate the prevalence of otomycosis and aetiological agents in Khouzestan province, south-west Iran.Methods:This cross-sectional study examined and cultured 881 swabs from suspected external otitis cases, collected from throughout Khouzestan province. Fungal agents were identified by slide culture and complementary tests when necessary.Results:The mean patient age was 37 years. The 20–39 year age group had the highest prevalence of otomycosis: 293 cases, comprising 162 (55.3 per cent) women and 131 (44.7 per cent) men. The seasonal distribution of cases was: summer, 44.7 per cent; autumn, 28.7 per cent; winter, 14.7 per cent; and spring, 11.9 per cent. The fungal agents isolated were Aspergillus niger (67.2 per cent), Aspergillus flavus (13 per cent), Candida albicans (11.6 per cent), Aspergillus fumigatus (6.2 per cent) and penicillium species (2 per cent).Conclusion:Fungal otomycosis is still one of the most important external ear diseases. In this study in south-west Iran, Aspergillus niger was the predominant aetiological agent. However, clinicians should be cautious of candidal otomycosis, which has a lower rate of incidence but is more prevalent among 20–39 year olds.

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Varicose Veins Among Different Occupational Background in City of Mosul-Iraq

10.53350/pjmhs211551399 ◽

2021 ◽

Vol 15 (5) ◽

pp. 1399-1402

Author(s):

H. J. Mahmood ◽

R. H. Ibrahim ◽

M. F. Abdulghani ◽

Z. F. Al-Zaidy

Keyword(s):

Clinical Practice ◽

Varicose Veins ◽

Cross Sectional Study ◽

Age Group ◽

Sectional Study ◽

Cross Sectional ◽

Study Results ◽

The Mean ◽

Occupational Background ◽

The City

Background and aim: The Objectives of the present study to determine the VV among people with different background occupations in the City of Mosul, Iraq. Materials and method: A cross-sectional study was performed at Mosul Teaching Hospital between November 2019 and February 2020. Two hundred people who were physically examined represented different jobs in Iraqi society (Nurses, address, Policemen, and teachers). A physical examination was conducted of all participants who agreed to engage in this study. Results: The overall prevalence rate of VV among different occupational backgrounds in the City of Mosul is 19.5%. The study found that the percentage of men (50.5%) and women (49.5%). Most of the patient was beyond to age group (41-45) years and the mean age of the participants was (39.1+3.1). According to the BMI, the results indicated that most subjects belong to a class<30 (77%). Conclusions: The nurses will seek to prevent excessive extended occupational standing and using sitting or walking when appropriate. As a result, an improvement in clinical practice may reduce the incidence of vascular disease. Keywords: Varicose, Veins, Occupational

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Comparing School-Aged Refraction Measurements Using the 2WIN-S Portable Refractor in Relation to Cycloplegic Retinoscopy: A Cross-Sectional Study

Journal of Ophthalmology ◽

10.1155/2021/6612476 ◽

2021 ◽

Vol 2021 ◽

pp. 1-8

Author(s):

Ziming Liu ◽

Emmanuel Eric Pazo ◽

Hong Ye ◽

Cui Yu ◽

Ling Xu ◽

...

Keyword(s):

Gold Standard ◽

Intraclass Correlation ◽

Cross Sectional Study ◽

Mean Value ◽

Spherical Equivalent ◽

Sectional Study ◽

Altman Analysis ◽

Cross Sectional ◽

Bland Altman Analysis ◽

The Mean

Purpose. To assess the repeatability and agreement of refractive measurements using 2WIN-S photoscreening with the gold-standard cycloplegic retinoscope refraction. Design. Single centre, cross-sectional study. Methods. Spherical, cylindrical, axis, and spherical equivalent of 194 bilateral eyes of 97 children were assessed using a retinoscope and 2WIN-S. One week later, another operator repeated the 2WIN-S measurements. The primary outcome measures were to assess the repeatability and agreement between spherical equivalent, J0, and J45 readings of 2WIN-S. The repeatability of measurements was assessed by the within-subject standard deviation (2.77 Sw) and intraclass correlation coefficient (ICC). The agreement between devices was assessed using 95% limits of agreement. The extent of the agreement between cycloplegic retinoscopy and noncycloplegic 2WIN-S measurements was assessed using Bland–Altman analysis. Results. The mean age ± SD was 10.3 ± 2.46 year (range, 4–14 years). The sphere, cylinder, and spherical equivalent measurements were found to be consistent with both apparatus (r value >0.86). ICC for SE, J0, and J45 was 0.900, 0.666, and 0.639, respectively; Sw for SE, J0, and J45 was 0.61D, 0.30D, and 0.31D, respectively; Bland–Altman analysis of retinoscopy with cycloplegia and 2WIN-S for SE was 184/194 (95%) in 95% confidence interval, and the mean value was 0.46. J0 was 184/194 (95%), and the mean value is −0.04. J45 was 181/194 (93%), and the mean value is −0.15. Conclusion. The objective refractive measurement of 2WIN-S had good reliability and high agreement with the gold-standard retinoscopy refraction in children and adolescents. While consistency was observed, it is essential to take into consideration that it is a screening tool.

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Refractive outcomes of table-mounted and hand-held auto-refractometers in children: an observational cross-sectional study

BMC Ophthalmology ◽

10.1186/s12886-021-02199-5 ◽

2021 ◽

Vol 21 (1) ◽

Author(s):

Müjdat Karabulut ◽

Sinem Karabulut ◽

Aylin Karalezli

Keyword(s):

Cross Sectional Study ◽

Spherical Equivalent ◽

Sectional Study ◽

Good Reliability ◽

Cross Sectional ◽

Refractive Outcomes ◽

Spearman's Rho ◽

Spearman’S Rho ◽

The Mean ◽

Cylinder Power

Abstract Background To compare the refractive results of hand-held and table-mounted autorefractors. Methods We designed this study as an observational, cross-sectional study. We compared the mean spheric and cylinder power, spherical equivalent, Jackson cross-cylinder values, determined the limits of agreement (LoA), and evaluated the reliability of two autorefractors. Results We evaluated 256 eyes of 256 pediatric patients (mean age, 9.12 ± 2.26 years; range, 5–16 years). 49% of the patients were female, and 51% were male. The Nidek HandyRef-K autorefractor measured relatively more astigmatism (P < 0.001) and less hyperopia (P = 0.024). The mean differences and 95% LoA were 0.06 D ± 0.47 D (− 0.82 D to 0.98 D) in spherical power, 0.08 D ± 0.28 D (− 0.47 D to 0.64 D) in cylindrical power, 0.11 D ± 0.47 D (− 0.81 D to 1.01 D) in spherical equivalent, 0.02 D ± 0.36 D (− 0.73 D to 0.69 D) in Jackson cross-cylinder power at 0°, 0.005 D ± 0.54 D (− 1.07 D to 1.06 D) in Jackson cross-cylinder power at 45°. We found the difference within 0.50 D in 244 (95%) eyes for spherical power, in 245 (96%) eyes for cylindrical power, 228 (89%) eyes for spherical equivalent, 224 (87%) eyes for Jackson cross-cylinder power at 0°, 213 (83%) eyes for Jackson cross-cylinder power at 45°. When comparing devices, there were strong correlations for spherical power (Spearman’s rho = 0.99, P < 0.001), cylindrical power (Spearman’s rho = 0.88, P < 0.001), and spherical equivalent (Spearman’s rho = 0.98, P < 0.001). Conclusion Two autorefractors showed clinically applicable agreement limits; excellent reliability for spherical power and spherical equivalent and good reliability for cylindrical power; high positive percent agreement for spherical and cylindrical power, spherical equivalent, Jackson cross-cylinder power at 0°and 45°. These results showed that both devices might be used interchangeably for screening of refractive error in children.

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Corneal curvature in young high myopic undergraduates in southern Nigeria

International Journal of Research in Medical Sciences ◽

10.18203/2320-6012.ijrms20182975 ◽

2018 ◽

Vol 6 (8) ◽

pp. 2592

Author(s):

Juno Ohiremere Okukpon ◽

Oluwashola Michael Ojo

Keyword(s):

Cross Sectional Study ◽

Spherical Equivalent ◽

Corneal Curvature ◽

Cross Sectional ◽

Benin City ◽

Spherical Equivalent Refraction ◽

Corneal Refractive Surgery ◽

Edo State ◽

Males And Females ◽

The Mean

Background: Corneal curvature is important for contact lens fitting and management, ocular aberration analysis, corneal refractive surgery as well as diagnoses and management of corneal pathological conditions such as keratoconus and it is also an important biometric factor affecting refractive errors, myopia inclusive.Methods: This was an observational cross-sectional study conducted at the Optometry Teaching Clinic, Department of Optometry, University of Benin, Benin City, Edo State, Nigeria. Two hundred and twenty myopic eyes of 113 (54 males, 59 females) undergraduates students, between 16 and 25 years with myopia of -5.00 to -20.50 participated in this study. Non-cycloplegic refraction was done by retinoscopic measurement and spherical equivalent refraction (SER) of the eyes was calculated. The corneal curvature was determined with a Bausch and Lomb one position Keratometer (Bausch and Lomb Corp., USA).Results: The mean age, spherical equivalent, corneal curvature and corneal power were 20.44±2.24 years, ̶7.12±3.14DS, 7.72±0.26mm and 43.77±1.48D respectively. Most of the students had a myopia of -5.75 to -10.50DS (46.8%) and a corneal curvature of 7.61-7.90mm (46.82%). There was a difference between the corneal curvature of males and females (P=0.0001). A relationship was also found with gender and corneal curvature (P=0.001).Conclusions: This study found that high myopic females had shorter corneal curvature, with greater corneal powers than their males counterparts (P<0.01). We also found that gender had a significant relationship with the corneal curvature unlike age and the spherical equivalent which showed no relationship (P>0.01).

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Effect of axial length and anterior chamber depth on the peripheral refraction profile

International Journal of Ophthalmology ◽

10.18240/ijo.2021.02.17 ◽

2021 ◽

Vol 14 (2) ◽

pp. 292-298

Author(s):

Masoud Khorrami-Nejad ◽

◽

Alireza Akbarzadeh Baghban ◽

Bahram Khosravi ◽

◽

...

Keyword(s):

Anterior Chamber ◽

Refractive Error ◽

Axial Length ◽

Anterior Chamber Depth ◽

Group Versus ◽

Cross Sectional Study ◽

Sectional Study ◽

Normal Range ◽

Cross Sectional ◽

The Mean

AIM: To evaluate the effect of axial length (AL) and anterior chamber depth (ACD) on peripheral refractive profile in myopic patients compared to emmetropic participants. METHODS: This cross-sectional study was conducted in right eyes of 58 participants of whom 38 were emmetropic and 20 were myopic. Central and peripheral refraction were measured at 10°, 20°, and 30° eccentricities in nasal and temporal fields using an open-field autorefractor. The Lenstar LS900 was used to measure ACD and AL. The participants were divided into three groups of short (<22.5 mm), normal (22.5-24.5 mm), and long eye (>24.5 mm) according to AL and three groups of low ACD (<3.00 mm), normal ACD (3.00-3.60 mm), and high ACD (>3.60 mm) according to ACD. RESULTS: The mean age of the participants was 22.26±3.09y (range 18-30y). The peripheral mean spherical refractive error showed a hypermetropic shift in myopic and emmetropic groups although this shift was more pronounced in the myopic group. The results showed significant changes in the spherical equivalent, J0, and J45 astigmatism in all gazes with an increase in eccentricity (P<0.001). The pattern of refractive error changes was more noticeable in long and short eyes versus normal AL eyes. Moreover, the pattern of peripheral refractive changes was much more prominent in the high ACD group versus the normal ACD group and in the normal ACD group versus the low ACD group. CONCLUSION: Peripheral refraction changes are greater in participants with AL values outside the normal range and deeper ACD values compared to participants with normal AL and ACD.

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Frequency of Crowding in patients reporting at Nishtar Institute of Dentistry, Multan

10.53350/pjmhs211581908 ◽

2021 ◽

Vol 15 (8) ◽

pp. 1908-1909

Author(s):

Zubair Hassan Awaisi ◽

Muhammad Azeem ◽

Faisal BDS ◽

Hafiza Asma Jawaid ◽

Muhammad Haseeb ◽

...

Keyword(s):

Statistical Analysis ◽

Age Groups ◽

Cross Sectional Study ◽

Permanent Dentition ◽

Age Group ◽

Sectional Study ◽

Chi Square ◽

Cross Sectional ◽

Gender And Age ◽

Chi Square Test

Aim: To determine the frequency of crowding in patients reporting at Nishtar Institute of Dentistry, Multan. Methods: A total of 200 patients (126 females, 74 males) having malocclusion in permanent dentition were included in this cross-sectional study. Patients in the age group 7years and above were included in the study. Statistical analysis was done by using SPSS version20.0. Cross tabulations were performed for gender and age groups and chi square test was used to determine association. Results: The frequency of crowding was found to be 29%. The percentage of crowding in males was 12% and females 17 %. While the frequency of crowding was 31% in males and 28% in females. It was found that there was a decrease in crowding with increasing age in both genders. Conclusion: Crowding was more frequent in females than males. Keywords: Malocclusion, Alignment, Orthodontics

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