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Vogt striae: Demystified.

Vijay K Sharma1, Rajesh Sinha2, S Bandopadhyay3

  • 1Senior Advisor (Ophthalmology) & Anterior Segment Surgery, Command Hospital (Eastern Command), Kolkata, India.

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|September 23, 2024
PubMed
Summary
This summary is machine-generated.

This study introduces a new grading system for Vogt striae in keratoconus patients, identifying mixed and oblique orientations for better assessment. The findings correlate Vogt striae characteristics with corneal scarring and visual acuity.

Keywords:
Horizontal vogt striaeKeratoconusOblique vogt striaeVogt striae

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Area of Science:

  • Ophthalmology
  • Corneal Diseases
  • Vision Science

Background:

  • Vogt striae are corneal findings associated with keratoconus.
  • Understanding their characteristics is crucial for keratoconus management.

Purpose of the Study:

  • To investigate the correlation between Vogt striae variables and keratoconus attributes.
  • To propose a novel grading system for Vogt striae to accurately describe their configuration and extent.

Main Methods:

  • Observational and data review of 386 eyes from 207 keratoconus patients.
  • Exclusion of patients with prior collagen cross-linking, corneal hydrops, or transplants.
  • Analysis of Vogt striae orientation, number, and presence of corneal scarring.

Main Results:

  • Vogt striae were observed in 52 eyes, with vertical orientation being most common (59.6%).
  • Mixed Vogt striae (85.7%) and oblique Vogt striae were identified, with associated corneal scarring.
  • Mean uncorrected distance visual acuity varied based on striae orientation.

Conclusions:

  • This study is the first to report mixed Vogt striae in keratoconus.
  • Oblique Vogt striae are described, with defined criteria for orientation classification.
  • A new grading system for Vogt striae based on orientation, number, and scarring is proposed.