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Retinal and Choroidal Thickness Changes in Populations with Helicobacter pylori Infection by Swept-Source Optical Coherence Tomography
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Choroidal thickness changes following cataract surgery using swept source optical coherence tomography.

Rida Shahzad1, M A Rehman Siddiqui2, Sidra Zafar1

  • 1Medical College, Section of Ophthalmology, Aga Khan University Hospital, Karachi, Pakistan.

Canadian Journal of Ophthalmology. Journal Canadien D'Ophtalmologie
|February 11, 2018
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Summary

Phacoemulsification cataract surgery led to a gradual increase in subfoveal choroidal thickness (SFCT) one month post-operation. This change was more significant in younger, non-diabetic patients, indicating potential long-term effects of cataract removal.

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Area of Science:

  • Ophthalmology
  • Medical Imaging
  • Choroidal Imaging

Background:

  • Cataract surgery is a common procedure.
  • Changes in choroidal thickness after surgery are not fully understood.
  • Swept-source optical coherence tomography (SS-OCT) allows precise measurement of choroidal parameters.

Purpose of the Study:

  • To evaluate subfoveal choroidal thickness (SFCT) changes after phacoemulsification cataract surgery.
  • To compare postoperative SFCT with preoperative measurements.
  • To identify factors influencing SFCT changes post-surgery.

Main Methods:

  • Prospective, interventional, controlled study involving 101 patients undergoing cataract surgery.
  • SS-OCT imaging used to measure SFCT preoperatively, 1 week, and 1 month postoperatively.
  • Statistical analysis included general linear model and paired t tests.

Main Results:

  • A statistically significant increase in SFCT was observed at 1 month post-surgery (p=0.01).
  • No significant changes in SFCT were noted in the control eyes.
  • The increase in SFCT was more pronounced in younger and non-diabetic individuals.

Conclusions:

  • Phacoemulsification cataract surgery is associated with a gradual increase in SFCT.
  • Age and diabetes status may influence the postoperative changes in choroidal thickness.
  • Further research is needed to understand the clinical implications of these findings.