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Most probably a crack in your lens has lacerated your eye, which is very painful. The eyedrops only prevent infection, but can't accelerate healing. Little lacerations heal quickly but sometimes hurt much longer; weeks or months (but not as bad as now). Wit l little wound in your eye the whole eye is irritated, therfore th reddening. It is getting worse after sleep, because the eye gets drier under closed eyes (Bepanthen eye oinment is helpful), and after being irritated by eyedrops. Please start wearing your lenses only when your eye is perfect and free of any pain.
I wish you a soon recovery!
The retina is in the back of your eye and can't be affected by a contact lens. It's the cornea which hurts, and the line maybe a little scratch, which will heal. Systane is an artificial tear product. It may help, but better are ointments like Lacri lube. But please take them for the night and don't stop the antibiotics!
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