Chameleon effect

Published: Friday 15 March 1996

Glaucoma is an eye disease resulting in the loss of eyesight due to fluid accumulation inside the eyeball which in turn builds-up pressure over the optic nerve, eventually leading to blindness.

A new drug developed by the US-based Pharmacia Upjohn Incorporated, latanoprost, is more effective than the standard drug for glaucoma,timolol. The latter is known to have numerous side-effects ranging from respiratory problems to irregular heartbeats also, people with hearing or respiratory problems cannot use it. Latanoprost, significantly, has fewer side-effects. But what worries scientists is the unfamiliar transformation of blue and green eyes to the colour brown with the use of latanoprost.

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