The best replacement for degeneration is glaucoma.

The best alternatives to degeneration are rated as following:
★★★★★  glaucoma
★★★★  cataracts
★★  macular hole
★★  dystrophy
★★  diabetic retinopathy
★★  macular edema
★★  floaters
★  cataract
★  keratoconus
★  damnation
★  macular degeneration
★  myopic degeneration
★  demyelination
★  regeneration
★  wet
  dry
  herniation
  dry macular degeneration

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

Other search terms related to degeneration and their ratings are:
★★★★★ cataracts
★★ hallucinations
★★ glaucoma
★ cataract surgery
★ drusen
You have in mind a companion for degeneration and it is not yet here? Propose!



Google Trends

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