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Ability of Patients With Low Vision to Properly Instill Eye Drops

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ClinicalTrials.gov Identifier: NCT00760240
Recruitment Status : Completed
First Posted : September 26, 2008
Last Update Posted : April 26, 2010
Information provided by:
Mid-Atlantic Glaucoma Experts

September 25, 2008
September 26, 2008
April 26, 2010
September 2008
September 2009   (Final data collection date for primary outcome measure)
Successful instillation of a single eyedrop onto the surface of the eye [ Time Frame: 2 minutes ]
Same as current
Complete list of historical versions of study NCT00760240 on ClinicalTrials.gov Archive Site
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Ability of Patients With Low Vision to Properly Instill Eye Drops
Objective Evaluation of the Ability of Patients With Decreased Vision or Restricted Visual Fields to Properly Instill Eye Drops
The investigators are interested in seeing how people with low vision (decreased visual acuity or restricted visual fields) instill eye drops into their own eyes. The investigators hypothesis is that this population will have more difficulty with self-instillation of drops than a better-seeing population. The investigators aim to explore whatever factors may be involved in preventing this population from getting prescribed eyedrops into their eyes, whether it is more related to visual field or visual acuity.
This is a study that involves a questionnaire that a study participant fills out, detailing their experience with eyedrops (if any), followed by a video recording of them instilling artificial tears into their worse-seeing eye, with their dominant hand. Patients must have visual acuity worse than 20/60 in at least one eye, and/or have a recent visual field that demonstrated Hodapp criteria for Moderate or Severe visual field damage. This is an observational study of how patients with low vision due to either glaucoma or retinal disease instill eyedrops. Each video will be "graded" by the principal investigator for "success" at instilling eyedrops, and patients will be stratified by their visual acuity or visual field, and whether they have a primary diagnosis of glaucoma or retinal disease.
Time Perspective: Cross-Sectional
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Non-Probability Sample
Patients reporting for appointments at outpatients referral practices shared by 2 glaucoma and 3 retina specialists
  • Glaucoma
  • Retinal Pathology
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  • Glaucoma patients
    This is a group of patients with restricted visual fields or ETDRS visual acuity of 20/60 or worse
  • Retina patients
    A group of patients with retinal pathology(ARMD, CME, diabetic retinopathy) contributing to their decreased vision.
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*   Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
September 2009
September 2009   (Final data collection date for primary outcome measure)

Inclusion Criteria:

  • ETDRS visual acuity 20/60 or worse

Exclusion Criteria:

  • Unwilling to participate
  • Light perception vision
  • No light perception vision
Sexes Eligible for Study: All
18 Years and older   (Adult, Senior)
Contact information is only displayed when the study is recruiting subjects
United States
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Amy L Hennessy, Mid-Atlantic Glaucoma Experts
Mid-Atlantic Glaucoma Experts
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Mid-Atlantic Glaucoma Experts
April 2010