To get her to lay the eggs...if it isn't too late already, she needs a proper egglaying bin...with a substrate she will be happy with and the peace/privacy to lay them.
If you've overfeed her, kept her too warm, not given he what she needs to lay the eggs then she could very well be eggbound.
You've been shown an egg laying bin. washed playsand, just moist enough to hold a tunnel, always seems to work as a substrate.
Do not bother her any more than ABSOLUTELY necessary....if she starts digging do not let her see you watching her at all. Cover the sides of the cage with a sheet so she has privacy.
If she still has the eye issue after she lays the eggs it can be worked on more then....as long as it doesn't get really bad in the meantime.
As for supplements...you need a phos free calcium powder to use on all feedings but one a week. On that one feeding a week, alternate between a phos free calcium/D3 powder and a vitamin powder that contains a prEformed source of vitamin A. Do all dusting a lightly. I'm trying to simplify it for you. There are other combinations of supplements heat work too....but I don't want it to be confusing.
D3 from supplements can build up in the system as can prEformed sources of vitamin A so we have to be careful with them...BTW.
You need to feed/gutload the insects properly too. For crickets, locusts, roaches, superworms you can use a wide variety of greens such as dandelions, kale, collards, endive, escarole, and veggies such as squash, sweet potato sweet red pepper, zucchini and a very very small amount of fruit like berries, apples, pears, melon, papaya, etc.