Screening for amblyopia in preverbal children.
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Amblyopia↗
Biomedical subjects
W L Ottar
Publications and source records attributed to W L Ottar.
Tonometry.
Tonometry is the measure of intraocular pressure. There are several methods used to obtain intraocular pressure, such as Goldmann applanation tonometry, Tono-Pen tonometry, pneumotonometry, and tactile tension. All these methods have advantages and disadvantages. Measurement of intraocular pressure plays an important role in the detection and management of glaucomatous conditions. It is important that the examiner be aware of the various methods and their shortcomings to obtain the most accurate measurement. By obtaining the most accurate intraocular pressure by tonometry, the diagnosis and management of glaucoma can be enhanced.
Bias↗
Pupillary examination: do i really need to look?
A pupillary examination takes very little time and does not require expensive equipment. Unfortunately, many ophthalmic personnel do not take the time to thoroughly evaluate pupillary function. Pupillary examinations can be easy if divided into the specific elements to be assessed. These elements should include color, shape, size, equality, and reaction to stimulus. This article will briefly review some of the more common pupillary abnormalities and review the steps of the pupillary examination.
Adult↗
The ABCs of visual acuity assessment.
An accurate visual acuity assessment is an important part of the ophthalmic examination. Each patient needs his or her vision assessed whether an adult, a baby, or a child. The purpose of this article is to review some of the testing methods used to assess vision in the less than 20/200 adult, the preverbal infant, and the uncooperative or timid child. Several "pearls and pitfalls" will be mentioned to help you obtain the best visual acuity assessment on all types of patients.
Adult↗
Photoscreening for amblyogenic factors.
BACKGROUND: The Medical Technology Inc (MTI) Photoscreener is a new eccentric photoscreener that is being marketed as a device for the detection of amblyogenic factors in preverbal children. The purpose of this study was to evaluate the accuracy of the MTI Photoscreener in the target population of young, healthy children. METHODS: One thousand and three healthy children between the age of 6 months and 59 months were photoscreened with the MTI Photoscreener. Nine hundred and forty nine children were included in the study and their results were compared with a complete ophthalmologic examination with cycloplegia. RESULTS: The sensitivity of the MTI Photoscreener was determined to be 81.8% with a specificity of 90.6%. The overall agreement rate was 88.8%. The positive and negative predictive values were 68.9% and 95.2%, respectively. All cases of strabismus and media opacities were detected. CONCLUSION: The MTI Photoscreener is an accurate and reliable device designed to detect amblyogenic factors in young children. The camera offers promise as a useful mass-screening tool.
Amblyopia↗