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Bessel Beams in Ophthalmology: A Review.

C S Suchand Sandeep1, Ahmad Khairyanto1, Tin Aung2,3

  • 1Centre for Optical and Laser Engineering, School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore 639798, Singapore.

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Summary

Non-diffractive Bessel beams offer improved resolution for imaging in scattering media, particularly in ophthalmology. This review explores their theoretical basis and applications, comparing them to current systems.

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Area of Science:

  • Optics and Photonics
  • Biomedical Imaging
  • Ophthalmology

Background:

  • Conventional imaging systems face resolution limits due to diffraction, exacerbated in scattering media like biological tissues.
  • Weak signal-to-noise ratios pose significant challenges for precise biomedical imaging.
  • Non-diffractive beams, including Bessel, Airy, vortex, and Mathieu beams, offer potential solutions to these limitations.

Purpose of the Study:

  • To review the theoretical foundations of non-diffractive Bessel beams.
  • To explore the diverse ophthalmological applications of Bessel beams.
  • To compare Bessel beam techniques with existing state-of-the-art ophthalmological systems.

Main Methods:

  • Theoretical review of non-diffractive Bessel beam properties.
  • Literature survey of ophthalmological applications utilizing Bessel beams.
  • Comparative analysis of Bessel beam techniques against conventional methods.

Main Results:

  • Bessel beams demonstrate potential for enhanced resolution and signal-to-noise ratios in ophthalmological imaging.
  • Various applications showcase the versatility of Bessel beams in addressing specific ocular imaging challenges.
  • Comparison highlights advantages and disadvantages relative to current ophthalmological imaging modalities.

Conclusions:

  • Non-diffractive Bessel beams represent a promising advancement for high-resolution ophthalmological imaging.
  • Further development and application of Bessel beams could significantly impact diagnostic capabilities in eye care.
  • The review provides insights into current progress and future directions for non-diffractive beams in ophthalmology.