Drishti Cards Bundle

Before a baby can recognise anything, they have to be able to hold their eyes on it. Looking starts as reflex-like alertness around 6 weeks, becomes active scanning at 8–10 weeks, and only turns into genuine sustained engagement from about 12 weeks.

Look duration is not a straight line upward — it rises to around 2 months, dips between 3 and 6 months as babies get quicker at disengaging, then climbs again from 6 months as voluntary, top-down attention comes online. Sustained attention in infancy is associated with later self-regulation and social communication, which is why it is worth practising deliberately rather than leaving to chance.

Patterns are how a baby learns that the visual world has structure. But a newborn can only see a pattern if its contrast is bold enough and its elements are large enough — fine detail is genuinely invisible at first.

Overall contrast sensitivity multiplies four to five times between roughly 4 and 9 weeks: the contrast a baby needs to detect a bold pattern drops from around 7% at 2–3 weeks to about 0.5% by 9 weeks. After that, sensitivity to broad shapes plateaus while sensitivity to fine detail keeps climbing through the first year. Babies need bold, widely-spaced patterns early and finer, more intricate ones later — in that order.

Colour vision is not switched on at birth. It arrives in a fixed order, and showing a two-week-old a full-spectrum rainbow is closer to noise than stimulation.

Chromatic discrimination is poor at birth and matures over the first months in sequence: red becomes discriminable in the first weeks, blue and yellow around 2–3 months, green around 4–5 months, with broadly adult-like basic colour vision by 5–6 months. Cards that follow this order — black and white first, then a single warm colour, then softer full colour — meet the eye where it actually is.

The biggest leap of the first year is not seeing more — it is seeing that separate parts belong to one whole. That is the difference between looking at shapes and recognising things.

Newborns can already perceive a centre-occluded object as one connected unit when its visible parts move together. The ability emerges in simpler displays by around 2 months and is robust by 4 months even when the occluder is large, making 2–4 months a rapid transitional window. By 4 months infants use the global form of a partly hidden object to work out what it is. Cards whose elements progressively connect into a single scene give the brain exactly this practice.