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Impact of watercleft localization on higher-order aberrations and visual function.

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Waterclefts in the crystalline lens, particularly central anterior waterclefts (C-AWC), significantly impact visual acuity and higher-order aberrations. Their size and location correlate with visual function, with posterior cortical waterclefts (C-PWC) showing greater effects.

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Area of Science:

  • Ophthalmology
  • Optics
  • Biomedical Engineering

Background:

  • Waterclefts are common findings in the crystalline lens.
  • Their impact on visual quality, particularly higher-order aberrations, is not fully understood.
  • Understanding watercleft characteristics is crucial for diagnosing and managing visual impairment.

Purpose of the Study:

  • To investigate the relationship between watercleft localization in crystalline lenses and higher-order aberrations.
  • To determine if watercleft location and size correlate with visual function and aberrations.

Main Methods:

  • A retrospective observational study of 131 eyes.
  • Ophthalmic examinations, swept-source anterior-segment optical coherence tomography, and wavefront analysis were performed.
  • Waterclefts were classified by location (central/peripheral) and type (anterior/posterior cortical).

Main Results:

  • Central anterior waterclefts (C-AWC) were significantly larger in area and volume than central posterior cortical waterclefts (C-PWC).
  • Eyes with waterclefts exhibited significantly higher levels of higher-order aberrations and lower visual acuity compared to clear eyes.
  • The impact on aberrations and visual acuity was greater for C-PWC than C-AWC for similar sizes.

Conclusions:

  • Central-type waterclefts lead to visual deterioration, with size correlating to visual function.
  • Posterior cortical waterclefts (C-PWC) have a more pronounced effect on higher-order aberrations and visual acuity than anterior waterclefts (C-AWC) of comparable size.
  • Watercleft localization is a significant factor in visual impairment.