Short-and long-term effect of clear corneal incisions on intraocular pressure

J Cataract Refract Surg. 1996 Jun;22(5):568-70. doi: 10.1016/s0886-3350(96)80010-1.


Purpose: To evaluate short- and long-term intraocular pressure (IOP) after cataract surgery using clear corneal incision to assess whether there is a statistically significant postoperative IOP decrease.

Setting: Advanced Vision Care, West Hills, California.

Methods: We retrospectively 135 eyes of 89 randomly selected patients who had scleral tunnel or clear corneal cataract surgery with a follow-up of at least 6 months. Patients with pre-existing glaucoma were excluded.

Results: In the clear corneal group (n = 84), mean IOP was statistically significantly lower (P = .019) 12 months after surgery than preoperatively (13.65 versus 15.57 mm Hg). Although there was a trend toward decreased IOP in the scleral tunnel incision group (n = 51), the difference was not statistically significant (P = .178).

Conclusion: We found a trend toward lower IOP that, if permanent, raises serious implications about the necessity of combined procedures in patients with both glaucoma and cataract.

Publication types

  • Comparative Study

MeSH terms

  • Aged
  • Cornea / surgery*
  • Female
  • Follow-Up Studies
  • Humans
  • Intraocular Pressure*
  • Lenses, Intraocular
  • Male
  • Ocular Hypotension / etiology
  • Phacoemulsification / methods*
  • Retrospective Studies
  • Sclera / surgery
  • Tonometry, Ocular