When it comes to parts of your eyeball, you generally don’t want things to detach. Usually, attached is a better situation. It would be an ideal scenario if your eyelashes were to remain attached to your eyelid, and for your crystalline lens inside the eye to stay attached to the ciliary muscles that control how it focuses on near objects. Likewise, you probably want your retina to be attached to the wall of the eyeball because if it isn’t, it makes it difficult to see.

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