PMID- 37162398
OWN - NLM
STAT- MEDLINE
DCOM- 20230512
LR  - 20230512
IS  - 1938-2391 (Electronic)
IS  - 1081-597X (Linking)
VI  - 39
IP  - 5
DP  - 2023 May
TI  - Visual Outcomes of Cataract Surgery in Patients With Keratoconus Using Toric and 
      Non-toric Lenses.
PG  - 319-325
LID - 10.3928/1081597X-20230301-01 [doi]
AB  - PURPOSE: To compare the accuracy and outcomes of different intraocular lens (IOL) 
      power calculation formulas in eyes with keratoconus undergoing cataract surgery 
      with toric and non-toric IOLs. METHODS: This was a consecutive retrospective case 
      series study including patients from the Cornea Service at the Department of 
      Ophthalmology and Visual Sciences at the University of British Columbia, 
      Vancouver, Canada, from 2000 to 2020. Keratoconus was diagnosed based on corneal 
      topography and clinician opinion. Patients who underwent topography-guided 
      photorefractive keratectomy, intracorneal ring segments implantation, or corneal 
      transplant were excluded. The manifest spherical equivalent, prediction errors, 
      and median absolute errors were calculated. Descriptive statistics were expressed 
      as mean +/- standard deviation. RESULTS: There were 160 eyes from 101 patients; 136 
      eyes received non-toric lenses and 24 eyes received toric lenses. Most patients 
      had mild disease (< 48.00 diopters [D]) when stratified by steep keratometry 
      values. Patients with severe disease (> 53.00 D) were significantly more 
      hyperopic following surgery (P < .05). The Barrett Universal II (0.26 D, 
      inter-quartile range [IQR] = 0.4), Holladay 2 (0.31, IQR = 1.2), and SRK/T (0.42, 
      IQR = 0.86) formulas had the lowest median absolute error. The postoperative 
      prediction error following toric lens insertion was not significantly different 
      than following non-toric lens insertion, and the mean absolute astigmatism was 
      significantly reduced with toric lenses. CONCLUSIONS: The Barrett Universal II, 
      Holladay 2, and SRK/T were the most accurate IOL power calculation formulas in 
      patients with keratoconus undergoing cataract surgery. Hyperopic surprise was 
      increased in severe keratoconus. Toric IOLs may be considered in patients with 
      mild keratoconus. [J Refract Surg. 2023;39(5):319-325.].
FAU - Ling, Jennifer Y M
AU  - Ling JYM
FAU - Qiao, Grace
AU  - Qiao G
FAU - Iovieno, Alfonso
AU  - Iovieno A
FAU - Yeung, Sonia N
AU  - Yeung SN
LA  - eng
PT  - Journal Article
DEP - 20230501
PL  - United States
TA  - J Refract Surg
JT  - Journal of refractive surgery (Thorofare, N.J. : 1995)
JID - 9505927
SB  - IM
MH  - Humans
MH  - *Keratoconus/complications/surgery
MH  - *Lenses, Intraocular
MH  - Lens Implantation, Intraocular
MH  - Retrospective Studies
MH  - Visual Acuity
MH  - *Phacoemulsification
MH  - Refraction, Ocular
MH  - *Astigmatism/surgery/diagnosis
MH  - *Hyperopia/surgery
MH  - *Cataract
EDAT- 2023/05/10 12:42
MHDA- 2023/05/12 07:06
CRDT- 2023/05/10 10:23
PHST- 2023/05/12 07:06 [medline]
PHST- 2023/05/10 12:42 [pubmed]
PHST- 2023/05/10 10:23 [entrez]
AID - 10.3928/1081597X-20230301-01 [doi]
PST - ppublish
SO  - J Refract Surg. 2023 May;39(5):319-325. doi: 10.3928/1081597X-20230301-01. Epub 
      2023 May 1.