# Size precision in insect eyes

## TL;DR

A new study reveals how the size of fruit fly eyes is precisely controlled using signals that regulate cell survival.

## Contribution

The study identifies a morphogen-mediated mechanism that ensures precise eye size in adult fruit flies.

## Key findings

- A morphogen signaling pathway modulates cell survival to regulate eye size in Drosophila.
- This mechanism contributes to the precision of organ size during development.
- The findings provide insight into how organisms achieve proportional organ growth.

## Abstract

The building of fully functional and well-proportioned individuals relies on the precise regulation of the size of each of their constituting organs. A new study unravels a mechanism that confers precision to size regulation of the adult Drosophila eye through morphogen-mediated modulation of cell survival.