BEING described as Miss Average is not usually regarded as a compliment. But that may be about to change after scientists calculated the ratios of the perfect face - and found they correspond to the typical woman. Beauty, researchers say, can be measured according to how close together a womans eyes are and the distance between her eyes and mouth. They found the ideal measurements, as a proportion of the overall size of a female face, were close to the average of all female profiles. The study is one of several in recent months to have boosted the stock of real women. To get the latest findings, researchers asked a panel to rate the attractiveness of women in photos. All were head shots of the same person with different distances from eyes to mouth or between the eyes. She was at her most attractive when the space between her pupils was just under half, or 46 per cent, of the width of her face from ear to ear. The other perfect dimension was when the distance between her eyes and mouth was just over a third, or 36 per cent, of the overall length of her face from hairline to chin. Celebrities whose faces are in perfect proportion include Jessica Alba, Liz Hurley and Shania Twain. More importantly, the ratios correspond to those of an average female face, the journal Vision Research reports. Professor Kang Lee, of the University of Toronto, said: 'We already know that different facial features make a female face attractive - large eyes, for example, or full lips. 'Our study proves that the structure of faces also contributes to our perception of facial attractiveness. However, it isnt clear if striking features carry more weight - for instance, sultry eyes may contribute more to beauty than perfect proportions. The importance of the distances from hairline to jaw and ear to ear may also explain why a new hair cut can radically improve a womans looks. Professor Kang Lee said: 'Sometimes an attractive person looks unattractive or vice versa after a haircut, because hairdos change the ratios. Daily Mail