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	Photos of the dress have become a Internet sensation because to some the dress appears to be blue and black, while others see it as white and gold.&nbsp;</div>
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	&ldquo;It&rsquo;s just the lighting and two colours being put together. In such circumstances, personal experiences play a role in how each person interprets these colours,&rdquo; RCOPT president Dr Paisan Ruamviboonsuk said yesterday.&nbsp;</div>
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	He said humans do not process colours simply based on what they receive from photoreceptors. &ldquo;The brain will process the input, which is why personal experiences are different,&rdquo; the ophthalmologist said.&nbsp;</div>
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It's how you see it

A widely circulated picture of a striped dress that appears to be of different colours is an "optical illusion", the Royal College of Ophthalmologists of Thailand (RCOPT) has said.