HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text Full Text (PDF) Submit a response Alert me when this article is cited Alert me when eLetters are posted Alert me if a correction is posted Citation Map Services Email this article to a friend Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Google Scholar Articles by Gothwal, V. K. Articles by Nutheti, R. Search for Related Content PubMed PubMed Citation Articles by Gothwal, V. K. Articles by Nutheti, R.

The Development of the LV Prasad-Functional Vision Questionnaire: A Measure of Functional Vision Performance of Visually Impaired Children

¹From the Meera and L. B. Deshpande Centre for Sight Enhancement, Vision Rehabilitation Centres, and the ³International Centre for Advancement of Rural Eye Care, LV Prasad Eye Institute, Hyderabad, India; and the ²School of Optometry, Queensland University of Technology, Brisbane, Australia.

PURPOSE. To develop a reliable and valid questionnaire (the LV Prasad-Functional Vision Questionnaire, LVP-FVQ) to assess self-reported functional vision problems of visually impaired school children.

METHODS. The LVP-FVQ consisting of 19 items was administered verbally to 78 visually impaired Indian school children aged 8 to 18 years. Responses for each item were rated on a 5-point scale. A Rasch analysis of the ordinal difficulty ratings was used to estimate interval measures of perceived visual ability for functional vision performance.

RESULTS. Content validity of the LVP-FVQ was shown by the good separation index (3.75) and high reliability scores (0.93) for the item parameters. Construct validity was shown with good model fit statistics. Criterion validity of the LVP-FVQ was shown by good discrimination among subjects who answered "seeing much worse" versus "as well as"; "seeing much worse" versus "as well as/a little worse" and "seeing much worse" versus "a little worse," compared with their normal-sighted friends. The task that required the least visual ability was "walking alone in the corridor at school"; the task that required the most was "reading a textbook at arm’s length." The estimated person measures of visual ability were linear with logarithm of the minimum angle of resolution (logMAR) acuity and the binocular high contrast distance visual acuity accounted for 32.6% of the variability in the person measure.

CONCLUSIONS. The LVP-FVQ is a reliable, valid, and simple questionnaire that can be used to measure functional vision in visually impaired children in developing countries such as India.

This article has been cited by other articles:

				R. W. Massof, J. T. Deremeik, W. L. Park, and L. L. Grover Self-Reported Importance and Difficulty of Driving in a Low-Vision Clinic Population Invest. Ophthalmol. Vis. Sci., November 1, 2007; 48(11): 4955 - 4962. [Abstract] [Full Text] [PDF]

				M. Chak, J. S. Rahi, and on behalf of the British Congenital Cataract Inter The health-related quality of life of children with congenital cataract: findings of the British Congenital Cataract Study Br. J. Ophthalmol., July 1, 2007; 91(7): 922 - 926. [Abstract] [Full Text] [PDF]

				E. L. Lamoureux, J. F. Pallant, K. Pesudovs, G. Rees, J. B. Hassell, and J. E. Keeffe The Effectiveness of Low-Vision Rehabilitation on Participation in Daily Living and Quality of Life Invest. Ophthalmol. Vis. Sci., April 1, 2007; 48(4): 1476 - 1482. [Abstract] [Full Text] [PDF]

				E. L. Lamoureux, J. F. Pallant, K. Pesudovs, J. B. Hassell, and J. E. Keeffe The Impact of Vision Impairment Questionnaire: An Evaluation of Its Measurement Properties using Rasch Analysis Invest. Ophthalmol. Vis. Sci., November 1, 2006; 47(11): 4732 - 4741. [Abstract] [Full Text] [PDF]

				J. A. Stelmack, J. P. Szlyk, T. R. Stelmack, P. Demers-Turco, R. T. Williams, D. Moran, and R. W. Massof Measuring outcomes of vision rehabilitation with the veterans affairs low vision visual functioning questionnaire. Invest. Ophthalmol. Vis. Sci., August 1, 2006; 47(8): 3253 - 3261. [Abstract] [Full Text] [PDF]

				A. Subramanian and C. Dickinson Spatial Localization in Visual Impairment Invest. Ophthalmol. Vis. Sci., January 1, 2006; 47(1): 78 - 85. [Abstract] [Full Text] [PDF]

				J. A. Stelmack, J. P. Szlyk, T. R. Stelmack, P. Demers-Turco, R. T. Williams, D. Moran, and R. W. Massof Psychometric Properties of the Veterans Affairs Low-Vision Visual Functioning Questionnaire Invest. Ophthalmol. Vis. Sci., November 1, 2004; 45(11): 3919 - 3928. [Abstract] [Full Text] [PDF]

				P. K. Nirmalan, R. K. John, V. K. Gothwal, S. Baskaran, P. Vijayalakshmi, and L. Rahmathullah The Impact of Visual Impairment on Functional Vision of Children in Rural South India: The Kariapatti Pediatric Eye Evaluation Project Invest. Ophthalmol. Vis. Sci., October 1, 2004; 45(10): 3442 - 3445. [Abstract] [Full Text] [PDF]

				R. Nutheti, B. R. Shamanna, S. Krishnaiah, V. K. Gothwal, R. Thomas, and G. N. Rao Perceived Visual Ability for Functional Vision Performance among Persons with Low Vision in the Indian State of Andhra Pradesh Invest. Ophthalmol. Vis. Sci., October 1, 2004; 45(10): 3458 - 3465. [Abstract] [Full Text] [PDF]