Refractive errors status among children examined at optical center in Khartoum state

Refractive error and visual impairment in primary school children in Onitsha, Anambra State, Nigeria

“…With-the-rule astigmatism was the most common type found in this study and this could be because it is commonly found in children 16 Similar findings were reported by Atif et al 16 among Sudanese children aged between 5 and 15 years. Opubiri et al 9 and Naidoo et al 15 found astigmatism to increase with an increase in age in South-South Nigeria and South Africa, respectively.…”

“…Higher prevalence findings were reported in Singapore, 35 China, 36 Vietnam, 37 Egypt 38 and Sudan. 16 The higher prevalence of myopia recorded in those studies was attributed to the high prevalence of myopia in Asians and Arab children. Myopia is a common visual problem in schoolchildren globally, with early detection and management being highly indicated for educational, behavioural and quality-of-life benefits.…”

“…This falls within the World Health Organization (WHO) prevalence range of 2% -10% reported among children in this age group worldwide and warrants regular vision screening. Table 5 6,7,8,9,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27 provides an overview of selected studies on the prevalence of REs among children of various ages in a range of African countries.…”

The visual status of adolescents in Riyadh, Saudi Arabia: a population study

“…On the other hand, we obtained an estimated baseline for the adolescent group in SA that was not available previously. The prevalence of strabismus (1.9%) was similar to a previous report at the local level (although in different age ranges) 15 but was also higher 14 , 17 , 39 , 42 and lower 18 , 38 , 62 – 64 than other studies at both local and international levels. Approximately one-fifth of our participants had correctable visual impairment (due to URE), which was consistent with previous findings.…”

“…11 , 29 , 32 Our results were also similar to those found in Sudan, but higher than those reported in Jordan (17%), Turkey (3.2%), Ethiopia (7.7%–10.2%), Iran (14.90%–29.3%), Tunisia (9.1%), Morocco (6.1%), and Egypt (12%). 18 , 33 , 38 – 45 The variations in myopia prevalence between the current study and previous reports could be the result of several factors, such as genetics, lifestyle (indoor and outdoor activities), and environmental factors. 46 – 50 …”