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Advanced diagnostic devices significantly improve keratoconus detection, aiding refractive surgeons. Early identification of keratoconus using corneal topographers and optical coherence tomography (OCT) helps prevent post-surgical ectasia.

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Area of Science:

  • Ophthalmology
  • Medical Imaging
  • Corneal Diseases

Background:

  • Keratoconus diagnosis has evolved from clinical assessment to advanced imaging techniques.
  • Early detection is crucial for preventing serious complications like ectasia after refractive surgery.

Purpose of the Study:

  • To review the advancements in diagnostic devices for keratoconus.
  • To highlight the role of various technologies in early keratoconus detection and management.

Main Methods:

  • Discussion of diagnostic instruments including Placido disc-based topographers, elevation-based topographers, and optical coherence tomography (OCT).
  • Evaluation of the advantages and disadvantages of each diagnostic modality.
  • Mention of quantitative indices derived from topographic data for keratoconus diagnosis.

Main Results:

  • Modern diagnostic devices offer high sensitivity for detecting early keratoconus.
  • Placido disc topographers are widely used but vary in technique and display, limiting direct comparison.
  • Optical coherence tomography (OCT) provides high resolution and deeper penetration, enhancing diagnostic capabilities.

Conclusions:

  • Corneal topographers and OCT are essential tools for diagnosing keratoconus.
  • These technologies aid in quantifying the disease and preventing surgical complications.
  • Each diagnostic method holds a distinct place in clinical practice for keratoconus management.