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Updated: Jul 3, 2026

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Localized Peripheral Corneal Densitometry Changes at 1 Month After Laser Posterior Capsulotomy.

Yusuf Yıldırım1

  • 1Department of Ophthalmology, University of Health Sciences, Gazi Yaşargıl Training and Research Hospital, Diyarbakır, Türkiye. dryusufyldrm1988@gmail.com.

Korean Journal of Ophthalmology : KJO
|July 2, 2026
PubMed
Summary

Neodymium laser posterior capsulotomy improved vision but caused a slight, localized increase in peripheral corneal densitometry at one month. Other corneal parameters and intraocular pressure remained stable, indicating a safe procedure.

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Area of Science:

  • Ophthalmology
  • Corneal Science
  • Laser Surgery

Background:

  • Posterior capsule opacification (PCO) is a common complication after cataract surgery.
  • Laser posterior capsulotomy is a standard procedure to restore vision in pseudophakic patients with PCO.
  • Evaluating the short-term effects of laser capsulotomy on corneal parameters is crucial for understanding its impact.

Purpose of the Study:

  • To assess changes in corneal densitometry, optical aberrations, visual acuity, central corneal thickness, keratometry, and intraocular pressure one month after neodymium:YAG laser posterior capsulotomy.

Main Methods:

  • A retrospective, self-controlled observational study analyzed 45 eyes of pseudophakic patients undergoing laser posterior capsulotomy.
  • Preoperative and 1-month postoperative examinations included visual acuity, intraocular pressure, keratometry, central corneal thickness, Scheimpflug-based corneal densitometry, and corneal aberration analysis.
Keywords:
CorneaLasersPosterior capsule opacificationTomography

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Main Results:

  • Best-corrected visual acuity significantly improved post-procedure (p < 0.001).
  • No significant changes were observed in keratometry, central corneal thickness, intraocular pressure, or corneal aberrations.
  • Corneal densitometry showed a significant increase in the anterior, central, posterior, and total layers within the 6-10 mm zone (p < 0.05), but not in other zones.

Conclusions:

  • Neodymium:YAG laser posterior capsulotomy effectively improves visual acuity.
  • The procedure is associated with a localized, short-term increase in peripheral corneal densitometry (6-10 mm zone) at one month.
  • Further prospective studies are needed to determine the clinical relevance and persistence of this densitometric change.