Double-pass system assessing the optical quality of pseudophakic eyes

Hun Lee, Kwanghyun Lee, Ji Min Ahn, Eung Kweon Kim, Bradford Sgrignoli, Tae Im Kim

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

PURPOSE: To compare the optical quality measurements obtained from the double-pass system and ocular aberrations, subjective visual acuity, and contrast sensitivity score in pseudophakic eyes. Methods: Three months after cataract surgery, modulation transfer function (MTF) cutoff frequency, Strehl ratio, objective scatter index, and objective pseudoaccommodation obtained from the double-pass system were compared with total aberration, higher-order aberration, and spherical aberration obtained from ray-tracing aberrometer. In addition, parameters of the double-pass system were compared with subjective visual acuity and the contrast sensitivity score. RESULTS: Forty eyes of 40 patients were included. The MTF cutoff frequency and Strehl ratio were negatively correlated with total aberration (r = -0.503, p = 0.003; r = -0.509, p = 0.003, respectively) and subjective visual acuity (r = -0.453, p = 0.007; r = -0.354, p = 0.040, respectively). The objective scatter index was positively correlated with total aberration (r = 0.451, p = 0.024) and subjective visual acuity (r = 0.516, p = 0.008). The MTF cutoff frequency showed a correlation with contrast sensitivity score under photopic and mesopic conditions. CONCLUSIONS: Optical quality parameters obtained from the double-pass system were correlated with ocular aberrations, subjective visual acuity, and contrast sensitivity score in pseudophakic eyes.

Original languageEnglish
Pages (from-to)437-443
Number of pages7
JournalOptometry and Vision Science
Volume91
Issue number4
DOIs
Publication statusPublished - 2014 Apr

All Science Journal Classification (ASJC) codes

  • Ophthalmology
  • Optometry

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