Subjective quality of vision before and after cataract surgery

Eirini Skiadaresi, Colm McAlinden, Konrad Pesudovs, Silvio Polizzi, Jyoti Khadka, Giuseppe Ravalico

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40 Citations (Scopus)


OBJECTIVE: To investigate the effect of cataract surgery on subjective quality of vision.

METHODS: The Quality of Vision (QoV) questionnaire (Italian translation) was completed before and 3 months after cataract surgery in 4 groups of patients recruited from September through December 2010: first eye with ocular comorbidity, first eye without ocular comorbidity, second eye with ocular comorbidity, and second eye without ocular comorbidity. The questionnaire measures 3 aspects of quality of vision: frequency, severity, and bothersome nature of symptoms. The Lens Opacities Classification System (LOCS) III was used for cataract grading. Friedman and Kruskal-Wallis H tests were performed to compare QoV scores within and between groups. Spearman rank correlations (rs) were calculated to investigate the correlation between LOCS III and QoV symptoms.

RESULTS: Two hundred twelve patients (mean [SD] age, 74.2 [8.7] years) were recruited, and 212 eyes were included in the study. Improvements in QoV scores were found in all 4 groups (P < .05). There were no statistically significant (P > .05) differences among the 4 groups in the improvement in QoV scores or in the preoperative or postoperative scores. Blurred vision was correlated with posterior subcapsular cataract (rs = 0.420, P = .04).

CONCLUSIONS: Cataract in one or both eyes causes a similar loss in subjective quality of vision, which is also irrespective of the presence of ocular comorbidity. Posterior subcapsular cataract causes the specific symptom "blurred vision." Cataract surgery resulted in a large and comparable improvement in subjective quality of vision, regardless of ocular comorbidity and first or second eye surgery.

Original languageEnglish
Pages (from-to)1377-82
Number of pages6
JournalArchives of Ophthalmology
Issue number11
Publication statusPublished or Issued - Nov 2012
Externally publishedYes


  • Aged
  • Cataract
  • Female
  • Follow-Up Studies
  • Humans
  • Lenses, Intraocular
  • Male
  • Phacoemulsification
  • Postoperative Period
  • Preoperative Period
  • Prospective Studies
  • Quality of Life
  • Surveys and Questionnaires
  • Treatment Outcome
  • Vision, Ocular
  • Comparative Study
  • Journal Article

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