My mom will be 78 next week..she too has macular degeneration and still quilts...the best thing we use for her is a 1/4" foot on her machine to help her to keep the line straigt..and use blue painters tape leading up to the feed dogs even with the 1/4" foot...use a good lighting system so there is no glare on your eyes or machine..we use an ott table lamp so she can move it to keep the glare off her work..as you know the macular works against light....if you use dark colors remember to use white thread...and go slow....you can do it...mom thought her life was over...she felt all she had left was her quilting and if she couldn't see to quilt what was she going to do..she is still going strong at 78..she is no longer allowed to drive but loves to go to fabric stores..she has always be great with color and that has been failing her in the last couple years as she can't make out the colors as well anymore but I have written the colors of her threads on the ends for her so when she appliques she won't put a purple on a blue...and I try be gentle when she looks at a color and says what an odd shade of grey when it is really a beautiful shade of blue...its ok....you have many years left of quilting and will find new inventive ways to make beautiful quilts...and hey today the new wave of quilting is off center or wavy blocks anyway...go with what you can do and have a great time doing it..blessings