Hi
@KatieLove92xo, Welcome to the forum and good on you for posting !!
From my experience, not professional advice or opinion.
Your body has become used to higher BSLs than usual and this also causes the lenses of your eyes to swell. Your sight has adjusted to this new state. Then, with diagnosis and commencement of insulin, your BSLS are improving.
Meanwhile your eyes and eye lenses need time to adjust which may take ? 3 months + or -.
Eye specialists and opticians advise to not have spectacles prescribed during this time as these will not be correct when your eyesight finally stabilises.
Please keep asking questions and look particularly at the Home page and the items under Type 1 Diabetes.
I would urge you particularly to read up the article there on hypoglycaemia and show it to your family and friends.
Take things step at a time. Develop good lines of communication with your health team, ask them about plans for sick days and the like and learn all you can from reading and asking questions here and with your health team.
At 51 years on insulin I am in good health and still learning. And just to let you know that there are T1Ds on site who have been on insulin for 40, 50 60 + years and are in good health. Welcome, fellow warrior !!!