Comment on

• Comparison of glaucomatous progression between untreated patients with normal-tension glaucoma and patients with therapeutically reduced intraocular pressures. Collaborative Normal-Tension Glaucoma Study Group.

  [No authors listed] [No authors listed] Am J Ophthalmol. 1998 Oct;126(4):487-97. doi: 10.1016/s0002-9394(98)00223-2. Am J Ophthalmol. 1998. PMID: 9780093 Clinical Trial.
• The effectiveness of intraocular pressure reduction in the treatment of normal-tension glaucoma. Collaborative Normal-Tension Glaucoma Study Group.

  [No authors listed] [No authors listed] Am J Ophthalmol. 1998 Oct;126(4):498-505. doi: 10.1016/s0002-9394(98)00272-4. Am J Ophthalmol. 1998. PMID: 9780094 Clinical Trial.