Pseudo-accommodation with intraocular lenses implanted in the bag

J Refract Surg. 2002 May-Jun;18(3):271-5. doi: 10.3928/1081-597X-20020501-10.


Purpose: To evaluate the accommodation potential in eyes after intraocular lens in-the-bag implantation.

Methods: Fifty-one consecutive patients were included in the study. Group 1 included 26 eyes that had phacoemulsification with continuous curvilinear capsulorhexis and in-the-bag implanted foldable IOL. Twenty-five eyes in Group 2 had capsulotomy with extracapsular cataract extraction and were implanted with polymethylmethacrylate IOL. Time elapsed from surgery was at least 6 months. There was no significant difference for age or gender between groups (P > .05). We measured accommodation amplitude and depth of the anterior chamber at distance and near fixation with an ultrasonic biometry device. The results were compared using the unpaired Student t-test.

Results: The anterior chamber depths while fixating at a distant object were not significantly different between groups (P>.05), however, at near the difference was statistically significant (P=.008). The change in depths between far and near fixation was significantly different (P=.002) and was more pronounced in the the capsulorhexis group (P < .001). The accommodation amplitudes in this group were significantly greater than in the capsulotomy group (P = .025).

Conclusion: Patients who had uncomplicated small incision phacoemulsification surgery with continuous curvilinear capsulorhexis and in-the-bag implanted lens seemed to preserve some pseudo-accommodation after surgery.

Publication types

  • Comparative Study

MeSH terms

  • Accommodation, Ocular / physiology*
  • Adult
  • Aged
  • Aged, 80 and over
  • Anterior Chamber / physiology
  • Capsulorhexis
  • Diagnostic Techniques, Ophthalmological
  • Female
  • Humans
  • Lens Implantation, Intraocular / methods*
  • Lenses, Intraocular*
  • Male
  • Middle Aged
  • Phacoemulsification / methods*
  • Postoperative Complications