eyes have evolved several times independently from other animals?

eyes have evolved several times independently from other animals?

आँखें एक दूसरे से स्वतंत्र रूप से कई बार विकसित हुई हैं?

source the  hindu

Scientists have discovered a bristle worm with such sharp-seeing eyes that they can measure up to those of mammals and octopuses.

 The Vanadisbristle worm

1 As a set, the worm’s eyes weigh about twenty times as much as the rest of the animal’s head.

2  Its eyesight is on a par with that of mice or rats, despite being a relatively simple organism with a minuscule brain. 

अल्प मस्तिष्क वाला अपेक्षाकृत सरल जीव होने के बावजूद, इसकी दृष्टि चूहों या चुहियों के बराबर होती है।

3 These worms see ultraviolet light. This may indicate that the purpose of its eyes is to see bioluminescent signals in the otherwise pitch-black nighttime sea.

Bioluminescent signals - 

typically involve changes in light intensity—these can be generated by altering conditions within the photophores (41) or by manipulating the emitted light using other anatomical features

 4 Vanadis’ eyes are built simply, but equipped with advanced functionality. 

5 They have evolved in a relatively short evolutionary time span of just a few million years. 

This means that they must have developed independently of, for example, human eyes and that the development of vision, even with a high level of function, is possible in a relatively short time.