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Night Vision: Halos After Laser vs ICL vs Lens Replacement

3 min read

Night vision symptoms – halos, glare, and starbursts around light sources – are among the most common concerns patients raise before refractive surgery. Understanding the cause and likelihood of these symptoms for each procedure is part of informed consent at Blue Fin Vision®.

Laser eye surgery creates a reshaped corneal optical zone. In the earlier era of LASIK, smaller treatment zones occasionally caused night vision disturbances in patients with large pupils. Modern laser platforms use larger optical zones and wavefront-guided or wavefront-optimised treatments, which have substantially reduced these effects.¹ Well-selected patients treated on contemporary platforms typically experience minimal night vision disturbance.

ICL surgery leaves the cornea unaltered. Because the optical surface of the cornea remains unchanged, the night vision profile with ICL is generally excellent, particularly for higher myopes, who often report subjectively better optical quality compared with their experience of spectacles or contact lenses.²

Lens replacement with multifocal intraocular lenses introduces a different optical mechanism. These lenses split incoming light into multiple focal points to provide both distance and near vision. This design can produce halos around lights, particularly during the early adaptation period. Extended-depth-of-focus (EDOF) designs tend to produce fewer dysphotopsias than trifocal lenses in some patients, though the trade-off is typically some reduction in near performance.³

At Blue Fin Vision®, the choice between trifocal and EDOF lenses is discussed in the context of each patient’s visual priorities and lifestyle. Night vision expectations are addressed explicitly before surgery, not after.

References

  1. Sandoval HP, Donnenfeld ED, Kohnen T, Lindstrom RL, Potvin R, Nichamin LD, Lane SS. Modern laser in situ keratomileusis outcomes. J Cataract Refract Surg. 2016;42(8):1224–1234.
  2. Packer M. The Implantable Collamer Lens with a central port: review of the literature. Clin Ophthalmol. 2018;12:2427–2438.
  3. Cochener B, Boutillier G, Lamard M, Guichaoua C. A comparative evaluation of a new generation of diffractive trifocal and extended depth of focus intraocular lenses. J Refract Surg. 2018;34(8):507–514.

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About Blue Fin Vision®

Blue Fin Vision® is a GMC-registered, consultant-led ophthalmology clinic with CQC-regulated facilities across London, Hertfordshire, and Essex. Patient outcomes are independently audited by the National Ophthalmology Database, confirming exceptionally low complication rates.