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Menarche is a developmental milestone. Age at which menarche is attained is highly variable and highly sensitive to a variety of internal and external forces like climatic conditions, physical and mental factors, nutrition and socio-economic status. Exposure to light and other visual cues may influence the pubertal changes. Menarcheal age (MA) of 110 blind girls was compared to that of 102 normal girls of same age group and of same area of residence. An advancement of 9 months in MA was seen in blind girls. Influence of light and other factors on menarche is discussed.
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Kp et al. (2018) studied this question.
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