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Visual Function and Functional Decline in Patients With Waterclefts.

Naoki Tanimura1, Natsuko Hatsusaka1, Hisanori Miyashita1

  • 1Department of Ophthalmology, Kanazawa Medical University, Ishikawa, Japan.

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Summary
This summary is machine-generated.

Total-type waterclefts (WCs) significantly decrease visual acuity and lens power, increasing straylight. Higher-order aberrations (HOA) also impair vision in WC eyes, suggesting HOA should be considered for surgical decisions.

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Area of Science:

  • Ophthalmology
  • Optometry
  • Vision Science

Background:

  • Waterclefts (WCs) are lens opacities that can affect visual function.
  • Understanding the impact of different WC subtypes on vision is crucial for patient management.

Purpose of the Study:

  • To investigate and compare visual function in eyes with three subtypes of waterclefts (WCs): peripheral, central, and total.
  • To analyze the relationship between WC subtypes and various visual parameters, including visual acuity, refractive error, and aberrations.

Main Methods:

  • Analysis of 70 eyes with WC opacity, categorized into peripheral, central, and total types, compared to 77 transparent lenses.
  • Measurements included corrected-distance visual acuity (CDVA), contrast visual acuity (CVA), spherical equivalent (SE), astigmatism, corneal power (CP), axial length (AL), straylight, backward light scattering (BLS), and higher-order aberrations (HOA).
  • Lenticular power (LP) was calculated based on AL, CP, and SE.

Main Results:

  • Central-type WCs significantly reduced CDVA and CVA, and increased straylight compared to controls.
  • Total-type WCs showed significant decreases in CDVA, CVA, and LP, with increased straylight compared to controls and peripheral-type WCs.
  • Both central- and total-type WCs exhibited higher ocular total HOA, with total-type WCs also showing higher internal total HOA.

Conclusions:

  • Total-type WCs lead to decreased LP (hyperopia), reduced CDVA, and increased straylight, necessitating consideration for surgical intervention.
  • Significant correlations between HOA and CDVA/straylight indicate that increased HOA negatively impacts visual function in eyes with WCs.