Hey, this is an English text. I want you to translate it into the Tunisian dialect. Please follow these steps:
1. Translate step by step and highlight differences between Tunisian dialect and Modern Standard Arabic.
2. Highlight sections you are confident translating into the Tunisian dialect.
Translate this text into the Tunisian dialect, focusing on capturing the essence of the language nuances:

1.. Introduction {#s1} ================ According to the World Health Organization (WHO), childhood blindness refers to diseases or conditions occurring in childhood or early adolescence, which, if left untreated, may result in severe visual impairment that is likely to be untreatable later in life \[[@B1]\]. The WHO estimates that 19 million children worldwide are currently visually impaired, of which 1.5 million are fully blind \[[@B2]\]. Furthermore, it is estimated that roughly 500,000 additional cases of childhood blindness occur each year, with a higher prevalence of these cases in lower-income populations \[[@B3]\]. Visual impairment is known to have a significant bearing on the health, social and future economic wellbeing of children around the world \[[@B4]\]. While the number of cases of blindness in children is lower than the rate among adults, the effects are still severe. As an economic drain on the family, community and nation, pediatric blindness is estimated to have a global annual cost of nearly 1 trillion US dollars \[[@B5]--[@B7]\]. Adding to the social and economic challenge, children who live with a significant visual impairment are less likely to attend and complete an education, find work, achieve financial independence, or establish an independent household. Pediatric visual impairment and blindness has also been linked to child mortality. Up to 60% of children die within a year of becoming blind from systemic complications or from a lack of coordinated care provided by their impoverished families \[[@B5],[@B7]\]. The etiological factors linking child mortality and vision loss also include premature birth, measles, congenital rubella syndrome, and vitamin A deficiency \[[@B8]\]. Thus, eye care and pediatric health are inextricably bound, making it crucial that visual problems be treated as early as possible. *Vision 2020:* The Right to Sight Initiative developed by the International Agency for Prevention of Blindness (IAPB) and WHO aims to reduce pediatric visual impairment and blindness internationally. It is estimated that 1 million blind children live in Asia, 0.3 million in Africa, 0.1 million in Latin America, and 0.1 million in the rest of the world \[[@B5]\]. As developing countries constitute 75% of childhood blindness, Vision 2020 is focused on improving disease control, human resource development, and health-care infrastructure in the developing world \[[@B2],[@B10]\]. India, the world's second largest country by population, is home to 21% of the world's blind and 23% of the visually impaired \[[@B9],[@B11]\]. India has approximately 270,000 blind children; while no valid estimates exist for Ghana, Sub-Saharan Africa has approximately 320,000 blind children \[[@B12],[@B13]\]. Similarly, with no valid estimates for the number of blind or visually impaired children in Honduras, Latin America has an estimated 100,000 blind children \[[@B13]\]. Several factors contribute to high rates of untreated pediatric blindness and visual impairment in Africa, Asia and Latin America. A shortage of pediatric ophthalmologists and ophthalmology centers as well as significant misunderstandings about pediatric eye issues and treatment options in rural communities have been identified in India and Ghana \[[@B14],[@B15]\]. While pediatric eye care has not been well studied within Honduras, cursory pilot studies indicate that Honduran families