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Does using topical latanoprost affect subfoveal choroidal thickness?

Zeynep Duru1, Cemal Özsaygılı1, Döndü Melek Ulusoy1

  • 1Department of Ophthalmology, Kayseri City Education and Research Hospital , Kayseri , Turkey.

Cutaneous and Ocular Toxicology
|June 20, 2019
PubMed
Summary

Topical latanoprost eye drops were found to increase subfoveal choroidal thickness in glaucoma patients. This study measured changes using enhanced depth imaging optical coherence tomography (EDI-OCT) over three months.

Keywords:
Choroidal thicknessEDI-OCTlatanoprostprostaglandin analogs

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Area of Science:

  • Ophthalmology
  • Medical Imaging
  • Pharmacology

Background:

  • Glaucoma and ocular hypertension are often treated with hypotensive eye drops.
  • Choroidal thickness is a relevant factor in ocular health and disease progression.
  • Enhanced depth imaging optical coherence tomography (EDI-OCT) allows for detailed measurement of choroidal structures.

Purpose of the Study:

  • To investigate the effect of latanoprost eye drops on subfoveal choroidal thickness.
  • To assess changes in macular area choroidal thickness using EDI-OCT.
  • To evaluate the impact of latanoprost therapy on choroidal hemodynamics in glaucoma patients.

Main Methods:

  • Prospective study design involving a study group with glaucoma/ocular hypertension and a control group.
  • Inclusion of 39 eyes from patients and 39 eyes from healthy controls.
  • Subfoveal choroidal thickness measurements obtained via EDI-OCT at baseline, 1 month, and 3 months post-latanoprost initiation.

Main Results:

  • No significant difference in subfoveal choroidal thickness between the study and control groups at baseline.
  • A statistically significant increase in subfoveal choroidal thickness was observed in the study group after 3 months of latanoprost therapy (p=.002).
  • Mean subfoveal choroidal thickness increased from 309.5 ± 38.5 µm at baseline to 318.3 ± 33.4 µm at 3 months.

Conclusions:

  • Topical latanoprost therapy leads to a significant increase in subfoveal choroidal thickness over a 3-month period.
  • The findings suggest a potential vascular effect of latanoprost on the choroid.
  • Further research is warranted to understand the long-term implications of these changes in glaucoma management.