The best replacement for cataracts is glaucoma.

The best alternatives to cataracts are rated as following:
★★★★★  glaucoma
★★  floaters
★  nuclear sclerosis
★  macular degeneration
  lenticular sclerosis
  sclerosis

Your alternative for cataracts is not listed? Suggest!
Speaking about cataracts, one probably shouldn't forget about astigmatism.

Other search terms related to cataracts and their ratings are:
★★★★★ astigmatism
★★★★ glaucoma
★★★★ macular degeneration
★★ iol
★★ lasik surgery
★★ keratoconus
★★ floaters
★ retinitis pigmentosa
atopic dermatitis
You have in mind a companion for cataracts and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of cataracts in all years. Click on graph for more.
cataracts
glaucoma
floaters