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Glaucoma is an eye condition characterized by increased intraocular pressure that damages the retina and optic nerve, leading to irreversible blindness if left untreated. The human eye has various components, including the cornea, iris, pupil, lens, and optic nerve. Aqueous humor is secreted by the epithelium of the ciliary body in the posterior chamber and flows through the trabecular meshwork and canal of Schlemm, maintaining normal intraocular pressure. The trabecular meshwork and the canal...
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Related Experiment Video

Updated: Jun 21, 2025

Author Spotlight: Advancements in Refractive Surgical Correction for Presbyopia and Exploring Postoperative Visual Acuity
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Ocular dominance shift in refractive cataract surgery: prospective, observational study.

Tingting Song1, Fen Nie, Yang Zhao

  • 1From the Aier Eye Hospital, Jinan University, Yuexiu District, Guangzhou, China (Song, Tang, Duan); Changsha Aier Eye Hospital, Aier Eye Hospital Group, Changsha, China (Song, Nie, Zhao, Liao, He, Tang, Duan); Aier Glaucoma Institute, Hunan Engineering Research Center for Glaucoma with Artificial Intelligence in Diagnosis and Application of New Materials, Changsha Aier Eye Hospital, Changsha, Hunan, China (Nie, Zhao, Duan).

Journal of Cataract and Refractive Surgery
|July 15, 2024
PubMed
Summary

Ocular dominance shift (ODS) after cataract surgery occurred in 40.4% of patients. Preoperative factors like age, uncorrected visual acuity, cataract type, and astigmatism can predict this shift, aiding surgical planning.

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Area of Science:

  • Ophthalmology
  • Vision Science

Background:

  • Cataract surgery is a common procedure to restore vision.
  • Understanding ocular dominance (OD) is crucial for visual function and surgical outcomes.
  • Ocular dominance shift (ODS) can occur post-cataract surgery, potentially impacting visual experience.

Purpose of the Study:

  • To investigate features of dominant and nondominant eyes in cataract patients.
  • To predict ocular dominance shift (ODS) following unilateral cataract surgery using preoperative indicators.

Main Methods:

  • Prospective observational study involving 94 patients undergoing unilateral cataract surgery.
  • Preoperative assessments included visual acuity, refraction, astigmatism (total, corneal, intraocular), cataract type, and ocular dominance.
  • Ocular dominance was re-evaluated 1 month postoperatively.

Main Results:

  • The ODS rate was 40.4% after unilateral cataract surgery.
  • Identified risk factors for ODS included age, uncorrected distance visual acuity (UDVA) of the nondominant eye, posterior subcapsular cataract, and total astigmatism.
  • No significant difference in vision-related quality of life was observed between patients with and without ODS.

Conclusions:

  • Preoperative parameters can serve as risk factors for predicting ODS after cataract surgery.
  • These findings can guide the prediction of dominant eye changes.
  • Improved prediction may enhance intraocular lens selection and monovision strategies.