Beauty is in the eye of the beer-holder

The latest scientific discovery from the University of Manchester. I wonder what sort of "research" they had to do for this project. As we used to say in college, "Now that I see you in the daytime, I don't find you attractive no more."

'Beer goggles' effect explained
BBC News
Scientists believe they have worked out a formula to calculate how "beer goggles" affect a drinker's vision. The drink-fuelled phenomenon is said to transform supposedly "ugly" people into beauties - until the morning after. Researchers at Manchester University say while beauty is in the eye of the beer-holder, the amount of alcohol consumed is not the only factor.

• An = number of units of alcohol consumed
• S = smokiness of the room (graded from 0-10, where 0 clear air; 10 extremely smoky)
• L = luminance of 'person of interest' (candelas per square metre; typically 1 pitch black; 150 as seen in normal room lighting)
• Vo = Snellen visual acuity (6/6 normal; 6/12 just meets driving standard)
• d = distance from 'person of interest' (metres; 0.5 to 3 metres)