Quality of Vision in Eyes After Selective Lamellar Keratoplasty

@article{Koh2012QualityOV,
  title={Quality of Vision in Eyes After Selective Lamellar Keratoplasty},
  author={Shizuka Koh and Naoyuki Maeda and Tomoya Nakagawa and Kohji Nishida},
  journal={Cornea},
  year={2012},
  volume={31},
  pages={S45–S49}
}
Abstract: With the increasing popularity of selective lamellar keratoplasty procedures, it is important to characterize the optical differences among penetrating keratoplasty (PK), deep anterior lamellar keratoplasty (DALK), and Descemet stripping automated endothelial keratoplasty (DSAEK). The impact of optical differences on the visual acuity (VA) in eyes after keratoplasty is significant. Quantitative evaluation of corneal higher-order aberrations (HOAs) of anterior and posterior surfaces… 
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Citation Type

Visual Function and Higher-Order Aberrations in Eyes After Corneal Transplantation: How to Improve Postoperative Quality of Vision
TLDR
This article introduces the concept of “parallelism of anterior and posterior surfaces in lamellar keratoplasty” to enhance the understanding of visual optics in eyes after penetrating and lamellars keratoplasties and how to apply this concept to surgery to improve and optimize patient visual outcomes.
Comparison of deep anterior lamellar keratoplasty and penetrating keratoplasty with respect to postoperative corneal sensitivity and tear film function
TLDR
Tear film function was restored more rapidly after DALK compared with PK, but there was no significant difference in corneal sensitivity between PK and DALK, and no significant correlation between corNEal sensitivity and tear film function after PK or DALK.
Effect of Intraocular Forward Scattering and Corneal Higher-Order Aberrations on Visual Acuity after Descemet’s Stripping Automated Endothelial Keratoplasty
TLDR
The pilot study demonstrated that the postoperative corrected visual acuity was significantly correlated with intraocular forward scattering, but not with corneal HOAs in post-DSAEK eyes, suggesting that intraocularforward scattering plays a more essential role in postoperative visual performance than cornesal aberrations after DSAeK.
Impact of Forward and Backward Scattering and Corneal Higher-Order Aberrations on Visual Acuity after Penetrating Keratoplasty
TLDR
It is demonstrated that the postoperative CDVA was significantly correlated with OSI and corneal HOAs, but not with backward scattering in post-PK eyes, suggesting that OSI as well as corneals higher-order aberrations plays an essential role in postoperative visual performance after PK.
Determinants of visual quality after endothelial keratoplasty.
Corneal Light Scatter After Ultrathin Descemet Stripping Automated Endothelial Keratoplasty Versus Descemet Membrane Endothelial Keratoplasty in Descemet Endothelial Thickness Comparison Trial: A Randomized Controlled Trial.
TLDR
Both UT-DSAEK and DMEK experience an improvement in the degree of corneal light scatter after surgery, however, there was no difference in densitometry between the 2 groups at month 12, and other factors such as higher order aberrations in the posterior cornea rather than stromal-stromal interface haze mediate the superior visual outcomes in DMEF.
Changes in Corneal Densitometry in Patients with Fuchs Endothelial Dystrophy after Endothelial Keratoplasty
TLDR
Corneal densitometry is a useful, objective method for quantification of the outcome of posterior lamellar keratoplasty irrespective of visual acuity and there is a significant correlation between preoperative and postoperative corneal light backscatter values after endothelial ker atoplasty, especially in the case of the DMEK procedure.
Visual Performance in Eyes Undergoing Femtosecond Laser-Assisted Keratoplasty for Advanced Keratoconus
This study was aimed to compare visual performance in eyes having femtosecond laser-assisted keratoplasty (FLAK) for grade 4 keratoconus and keratoconic eyes according to the Amsler-Krumeich…
Densitometry Analysis of Corneal Backscatter After Pre-Descemet Endothelial Keratoplasty for Pseudophakic Bullous Keratopathy.
TLDR
Clinically clear corneas with visual acuity 20/20 showed no difference in the total corneal densitometry as compared to their fellow eye, and cornea backscatter was higher in the anterior cornea and in the central 0 to 6 mm zone.
Recipient corneal thickness and visual outcome after Descemet's stripping automated endothelial keratoplasty
TLDR
It is suggested that changes in RCT and corneal densitometry are important for the visual outcome after DSAEK.
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