The prevalence of different refractive errors in the Delta region of Egypt

Ali, Fatma Mohammed Ahmed; Mourad, Mervat; Rehan, Rafaat Ali; Seleet, Mouamen M

doi:10.4103/ejos.ejos_13_20

Cited by 3 publications

(6 citation statements)

References 2 publications

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“…This result was consistent with a study with a 63.1% positive family history, which may support the genetic factor theory (34) . In our study, only 39.6% of children wore glasses, which was similar to study, where only 31% of children wore glasses (15) . This showed a lack of knowledge about the significance of routine eye exams for children, even those with high levels of education.…”

Section: Amblyopiasupporting

confidence: 90%

“…95 children from 142 (66.9%) had a substantial refractive error of 0.50 or worse in one or both eyes, according to Azzam Mohamed et al, study (14) . However, the prevalence of REs in our study was higher than that in the following studies: According to studies by Mourad, et al (15) and El-Masry et al (16) in Cairo, Egypt, RE prevalence among school children aged 7 to 14 was 7.1% and 22.1%, respectively. Additionally, according to a 2020 study by Elsabagh and Elseht, the prevalence of REs was 22.1%.…”

Section: Discussioncontrasting

confidence: 72%

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Pattern of Errors of Refraction among Children Attending Ophthalmic Outpatient Clinic in Suez Canal University Hospital

Abd Elkhalik,

El-Bassiouny,

El nahass

et al. 2023

Suez Canal University Medical Journal

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Background:The eye health care program used systematic referrals and quick management by qualified ophthalmologists at secondary and tertiary levels as well as early detection of blinding eye illnesses at the primary health level in the last ten years to reduce childhood blindness. Aim: to describe the incidence of errors of refraction of children attending the ophthalmic outpatient clinic at Suez Canal University Hospital to have a better insight into our ophthalmic problems and update our investigation and management to overcome this problem. Patients and Methods: This descriptive cross-sectional study was carried out on 331 children who attended the ophthalmic outpatient clinic in Suez Canal University Hospital for 3 months in the period from January 2019 to April 2019. Results: The most common refraction error among the studied participants was astigmatism 75.2% followed by hypermetropia with 16% and myopia with 8.8%. Among astigmatism, the most common subtype was myopic astigmatism (36.2%). The study included 178 (53.8%) girls and 153 (46.2%) boys with a Mean age of 7±2 years. A family history of refractive errors was 215(65%) positive. REs in our study were more in females than males and in rural areas than in urban areas. Amblyopia was seen in 51.8%. Conclusion: We discovered that most of the affected children were in the school age range, highlighting the significance of screening schools for REs among school children. We also covered in our study how a family history was typical in children with refractive error.

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Section: Amblyopiasupporting

confidence: 90%

Section: Discussioncontrasting

confidence: 72%

Pattern of Errors of Refraction among Children Attending Ophthalmic Outpatient Clinic in Suez Canal University Hospital

Abd Elkhalik,

El-Bassiouny,

El nahass

et al. 2023

Suez Canal University Medical Journal

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“…Generally, our study showed that myopia is more prevalent than hyperopia in the sample. Similarly, an Egyptian clinical study [26] revealed that…”

Section: Ta B L Ementioning

confidence: 93%

“…Nevertheless, we did not test the magnitude of error under these circumstances. Third, since the pattern of distribution of refractive errors may be different from other populations and our sample was limited to the Egyptians, the validity of the models in other populations is uncertain [13,26,62].…”

Section: F I G U R Ementioning

confidence: 99%

“…The myopic shift in the older adults is probably related to sclerosis of the lens and increasing curvature [28]. The prevalence of astigmatism was also very high [26]. Astigmatism is a clinically dynamic phenomenon, and the magnitude and axis are influenced by several factors including population affinity or genetic factors, and near vision visual tasks.…”

Section: F I G U R Ementioning

confidence: 99%

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Prescription eyeglasses as a forensic physical evidence: Prediction of age based on refractive error measures using machine learning algorithm

Moustafa,

Ghitani,

Kholief

et al. 2024

Journal of Forensic Sciences

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Refractive errors (RE) are commonly reported visual impairment problems worldwide. Previous clinical studies demonstrated age‐related changes in human eyes. We hypothesized that the binocular RE metrics including sphere and cylinder power, axis orientation, and interpupillary distance (IPD) can be used for forensic age estimation of an unknown individual. RE data of both eyes were collected from the clinical optometric exams and prescription glasses of 2027 Egyptian individuals aged between 2 to 93 years. The differences between age groups as well as sides, and sexual dimorphism were explored. Two modeling methods were compared: multiple and stepwise linear regression (LR) versus machine learning Regression Forest (RFM). Data were apportioned into training and test datasets with a ratio of 80/20. The results showed significant differences among the age groups in each eye for all variables. Stepwise LR improved the results over models based on the one‐sided lens due to selection of IPD in addition to the left and right axis, and left sphere as independent variables. For the RFM, the left axis and IPD were the most important features. RFM outperformed LR in terms of accuracy and root mean squared error (RMSE). The estimated age within ±10 years showed 81.4% accuracy rate and RMSE = 8.9 years versus 38.5% accuracy rate and RMSE = 17.99 years using RFM and stepwise LR, respectively, in the test set. The current study upholds the significance of the age‐related changes of refractive error in formulating alternative forensic age estimation models when standard methods are unavailable.

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Ocular response analyzer and posterior segment optical coherence tomography findings in refractive surgery candidates

Bayoumi

Samir²,

Elmassry

et al. 2022

Journal of the Egyptian Ophthalmological Society

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Aim The aim of the study was to report on the ocular response analyzer and posterior segment optical coherence tomography findings in refractive surgery candidates. Patients and methods The study was conducted on 100 eyes of 50 (37 females) patients seeking refractive surgery at a private eye center in Alexandria, Egypt. Following detailed history taking, all study participants were subjected to a thorough ophthalmic examination including assessment of uncorrected and best-corrected visual acuity, manifest and cycloplegic refraction, slit-lamp examination, measurement of intraocular pressure (IOP) using Goldmann applanation tonometry, and fundus examination using a high plus auxiliary lens. Optical coherence tomography and corneal biomechanical properties were then studied using the Reichert ocular response analyzer. Results The mean±SD age of the study patients was 25.27±4.9 years and of contact lens wear (24% of study patients) was 2.5±0.9 years. The mean±SD of the manifest refractive error was −5.6±5.2 D sphere and −1.6±1.2 D cylinder and of the best-corrected visual acuity was 0.9±0.2. The mean±SD of the IOPg, IOPcc, corneal hysteresis and cornea resistance factor were 14.9±3.8, 16.5±3.4, 9.3±1.9, and 9.4±2 mmHg, of the Peripapillary Retinal Nerve Fibre Layer (pRNFL) thickness were 68.9±20.5 μ nasal, 113.3±20.7 μ superior, 77.7±16 μ temporal, and 119.3±21.5 μ inferior and of the central macula thickness was 270.8±22.9 μ. Conclusions The corneal biomechanical properties and the macular nerve fiber layer thickness are not correlated with the refractive error of the eye, whereas the peripapillary nerve fiber layer thickness correlates with the refractive error and the visual acuity. Screening of the corneal biomechanical properties and the nerve fiber layers is recommended for refractive surgery candidates.

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The prevalence of different refractive errors in the Delta region of Egypt

Cited by 3 publications

References 2 publications

Pattern of Errors of Refraction among Children Attending Ophthalmic Outpatient Clinic in Suez Canal University Hospital

Pattern of Errors of Refraction among Children Attending Ophthalmic Outpatient Clinic in Suez Canal University Hospital

Prescription eyeglasses as a forensic physical evidence: Prediction of age based on refractive error measures using machine learning algorithm

Ocular response analyzer and posterior segment optical coherence tomography findings in refractive surgery candidates

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