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Biomedical subjects

E Goodlaw

Publications and source records attributed to E Goodlaw.

7 recordsLinked to original sources

Role of the optometrist in age-related maculopathy.

The increasing aging segment of our population presents both a challenge and an opportunity for optometry. The challenge is to provide sufficient manpower skilled in the problems of the aging and to assure participation in any therapeutic program. The opportunity is to help those with maculopathy to achieve the required visual performance. This entails prevention measures, detection diagnosis, and referral for medical care when indicated. When medical therapy is not helpful, the optometrist employs low vision techniques to surmount the visual handicaps to achieve visual performance commensurate with lifestyle needs. A discussion of retinal performance to aid in understanding age-related maculopathy (ARM) is presented. Similarly, the various low vision techniques used to aid the patient with ARM are considered.

Aged

A case in point extended.

No visual examination can be considered complete without visual field investigation. Garmizo suggests at least a hand confrontation, and Goodlaw urges a refinement of this procedure using a wand with a 3" by 3" background to a 3mm target. There is also a question of body clues to hand location when the hand is the target. This suggested procedure circumvents this by using a 6" to 8" long handle on the target.

Cues

Rehabilitating a patient with bitemporal hemianopia.

For those with large field defects, employing totally reflecting mirrors or prisms to reflect information from non-seen areas also blocks out areas within the remaining functional field. A patient with large field defects commonly resists further encroachment upon any part of his limited field. Employing a 30 percent reflectance mirror retains the remaining field unencumbered (because this type of mirror is also semi-transparent) and provides information from the blind area by reflection.

Craniocerebral Trauma

Three binocularity evaluation methods.

Determining effort expended in binocular seeing is usually accomplished by equating dissociated phoria with total vergence ability. Fixation disparity testing by disclosing failure of precise binocular alignment is a second method which helps to assess both direction and quantity of prism power needed to accomplish alignment. Neither of these two methods delineates the foveal role as a sensory fusional lock in binocularity. The third is the Goodlaw test in which the exact focus of the eyes is disturbed through plus and/or minus lenses, provides this information and further directs therapy.

Adolescent