Impact of partial administration of the Cognitive Behavioral Driver's Inventory on concurrent validity for people with brain injury.

Objectives: We sought to determine whether the partial administration of the Cognitive Behavioral Driver's Inventory (CBDI) has a significant effect on its concurrent validity.

Method: Data were extracted from charts of clients with cerebrovascular accident or traumatic brain injury from three centers. The CBDI was administered either completely or partially (right and left perimetry or Wechsler Adult Intelligence Scale-Revised (WAIS-R; Wechsler, 1982; Picture Completion and Digit Symbol tests were not completed).

Reducing wait time for cataract surgery: comparison of 2 historical cohorts of patients in Montreal.

Objective: A cataract efficiency program was implemented in Montreal in 2003 to decrease surgery wait time. Our goal was to determine whether health, adverse events during wait time, and outcome of patients presenting for cataract surgery differed from 1999 to 2006 in Montreal.

Design: Prospective preoperative and postoperative observational study performed at 2 time points 6 years apart.

Health-related and subjective quality of life of older adults with visual impairment.

Purpose: To document health-related quality of life (HRQOL) and subjective quality of life (SQOL) and explore their correlates in older adults seeking services for visual impairment (VI).

Method: A convenience sample of 64 participants (79.3 +/- 5.

Participation in daily activities and social roles of older adults with visual impairment.

Purpose: (1) to document participation in daily activities and social roles of older adults seeking services for visual impairment (VI) and compare it with that of the older population without VI or other disabilities, and (2) to explore correlates of their participation.

Methods: The 64 participants (46 women) had an average age of 79.3 years (SD = 5.

Cataract-related vision loss and depression in a cohort of patients awaiting cataract surgery.

Objective: As provinces consider what an acceptable cataract surgery wait time should be, research is needed on the risk of adverse events, such as depression, while waiting for care. We sought to determine whether worse visual acuity is related to depressive symptoms in patients waiting to have cataract surgery.

Design: Cohort study.

Effects of practice, visual loss, limb amputation, and disuse on motor imagery vividness.

Background: The ability to generate vivid images of movements is variable across individuals and likely influenced by sensorimotor inputs.

Objectives: The authors examined (1) the vividness of motor imagery in dancers and in persons with late blindness, with amputation or an immobilization of one lower limb; (2) the effects of prosthesis use on motor imagery; and (3) the temporal characteristics of motor imagery.

Methods: Eleven dancers, 10 persons with late blindness, 14 with amputation, 6 with immobilization, and 2 groups of age-matched healthy individuals (27 in control group A; 35 in control group B) participated.

Content validity of a home-based person-environment interaction assessment tool for visually impaired adults.

Home-based assessments require in-depth analyses of daily living difficulties. No assessment tool that has been validated with visually impaired adult subjects has allowed such analysis. This research adapted a home-based person-environment interaction assessment tool designed for persons who are visually impaired.

Validity of screening for glaucomatous optic nerve damage using confocal scanning laser ophthalmoscopy (Heidelberg Retina Tomograph II) in high-risk populations: a pilot study.

Purpose: To evaluate whether confocal scanning laser ophthalmoscopy (Heidelberg Retina Tomograph II [HRT II], Heidelberg Engineering, Heidelberg, Germany) is a valid tool for the detection of glaucomatous optic nerve damage.

Design: Observational, cross-sectional, nonconsecutive study in Montreal, Canada.

Participants: Three hundred three nonconsecutive, high-risk persons were enrolled during a 6-month period.

Morphometry of cells and guttae in subjects with normal or guttate endothelium with a contour detection algorithm.

Purpose: To develop a semiautomatic method to analyze morphology of cells and guttae in corneal endothelium.

Methods: Specular endothelial pictures from 42 and 21 subjects with healthy and guttate corneas, respectively, were analyzed independently by two observers with cell contour-extracting routines. One observer also analyzed healthy endothelia with the Corner method (Bambi).

Comparison of two, three and four 45 degrees image fields obtained with the Topcon CRW6 nonmydriatic camera for screening for diabetic retinopathy.

Background: The use of the nonmydriatic camera is gaining increasing acceptance for the detection of diabetic retinopathy when integrated into a community-tailored program. We performed a study to evaluate the optimal number and positioning of photographic fields necessary to screen for diabetic retinopathy with the Topcon CRW6 nonmydriatic camera.

Methods: In this prospective masked cross-sectional comparative study, we compared the assessment of diabetic retinopathy using two, three or four 45 degrees fundus images (centred respectively on the disc and the macula; on the disc, on the macula and temporal to the macula; and on the disc, on the macula, temporal to the macula and superotemporal to the macula, including the superior temporal vein) acquired with the Topcon CRW6 nonmydriatic camera, with the grading of the seven standard stereoscopic 30 degrees field photographs (7SF).

Effectiveness and safety of screening for diabetic retinopathy with two nonmydriatic digital images compared with the seven standard stereoscopic photographic fields.

Background: The use of nonmydriatic cameras, which offer ease of screening and 45 degrees immediate imaging of the fundus, is gaining increasing acceptance for screening programs tailored to diverse conditions. We performed a study to evaluate the effectiveness and safety of screening for diabetic retinopathy with two nonmydriatic camera images compared with the seven standard stereoscopic 30 degrees fields (7SF). We also wished to determine whether safe screening guidelines could be established to identify patients needing referral to an ophthalmologist.

The VF-14 index of visual function in recipients of a corneal graft: a 2-year follow-up study.

Purpose: To assess visual functioning and other health-related quality of life outcomes after corneal grafting.

Design: A cohort study of corneal graft recipients observed for a minimum of 2 years after transplantation.

Methods: Repeated measurements were obtained by telephone interviews preoperatively and later at 1 and 2 years post-corneal transplantation in 217 patients with the following questionnaires: visual function index (VF-14), visual symptom score and global measures of trouble with vision, dissatisfaction with vision, ocular pain, and discomfort.

Prevalence of visual impairment and utilization of rehabilitation services in the visually impaired elderly population of Quebec.

Data on the prevalence of reported visual impairment and on the utilization of rehabilitation services were collected on a sample consisting of 1777 community-residing people aged at least 65 years. A visual disability was considered to be present if the answer to at least one of the following two questions was positive: Do you have trouble reading ordinary newsprint with glasses (if normally worn)? Do you have trouble clearly seeing the face of someone 12 feet away with glasses (if normally worn)? Prevalence of a reported near disability was 7.6%, prevalence of a reported distance disability was 4.