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Confocal Fluorescence Microscopy01:16

Confocal Fluorescence Microscopy

Confocal microscopy is an advanced microscopic technique. The prime advantage of the confocal microscope over other microscopy techniques is its ability to block the out-of-focus light from the illuminated samples using pinholes. It is widely used with fluorescence optics to obtain high-resolution, sharp contrast images. Unlike optical microscopes, confocal microscopes use a focused beam of light laser to scan the entire sample surface at different z-planes. These microscopes are, therefore,...

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Related Experiment Video

Updated: Jul 1, 2026

Correction of Presbyopia by Monocular Bi-Aspheric Ablation Profile
05:46

Correction of Presbyopia by Monocular Bi-Aspheric Ablation Profile

Published on: September 20, 2024

Overview of laser refractive surgery.

Samuel Chao-ming Huang1, Hung-Chi Jesse Chen

  • 1Department of Ophthalmology, Chang Gung Memorial Hospital, Taipei, Taiwan, ROC.

Chang Gung Medical Journal
|September 12, 2008
PubMed
Summary

Laser refractive surgery, including photorefractive keratectomy (PRK) and laser in situ keratomileusis (LASIK), offers safe and effective correction for myopia, hyperopia, and astigmatism. Ongoing advancements aim to improve outcomes and address complex cases.

Area of Science:

  • Ophthalmology
  • Refractive Surgery
  • Corneal Surgery

Background:

  • Excimer laser approval in 1995 revolutionized refractive error correction.
  • Advances include femtosecond lasers and wavefront-guided ablation.
  • Understanding corneal biomechanics and aberrations is crucial.

Purpose of the Study:

  • To review basic knowledge, surgical issues, and clinical outcomes of laser refractive surgery.
  • To discuss advancements and compare techniques like PRK and LASIK.
  • To address complex cases and potential complications.

Main Methods:

  • Review of scientific literature on laser refractive surgery.
  • Analysis of safety and efficacy data for PRK and LASIK.
  • Discussion of surgical techniques and patient selection criteria.

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Comparison of Agreement and Accuracy using Binocular Wavefront Optometer with Autorefractor and Phoropter
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Comparison of Agreement and Accuracy using Binocular Wavefront Optometer with Autorefractor and Phoropter

Published on: September 16, 2025

Related Experiment Videos

Last Updated: Jul 1, 2026

Correction of Presbyopia by Monocular Bi-Aspheric Ablation Profile
05:46

Correction of Presbyopia by Monocular Bi-Aspheric Ablation Profile

Published on: September 20, 2024

Comparison of Agreement and Accuracy using Binocular Wavefront Optometer with Autorefractor and Phoropter
05:14

Comparison of Agreement and Accuracy using Binocular Wavefront Optometer with Autorefractor and Phoropter

Published on: September 16, 2025

Main Results:

  • Laser refractive surgery, including PRK and LASIK, demonstrates high safety and efficacy.
  • LASIK offers rapid visual recovery and less postoperative pain compared to PRK.
  • Both techniques have surpassed conventional methods like radial keratotomy (RK).

Conclusions:

  • Laser refractive surgery provides predictable and stable results for refractive errors.
  • Patient-surgeon discussion is vital for choosing between PRK and LASIK.
  • Further research is needed for complex cases and to minimize complications.