Manfred MacKeben
MacKeben Lab Director
Degrees: Ph.D.
Work in this laboratory is devoted to researching facts and developing tools to help the rehabilitation of people with low vision, especially those with macular vision loss.
Tabs
Journal Articles
. (2016). Testing macular letter recognition-reliability and influence of refraction errors. Clinical And Experimental Optometry, 99, 322–327.
. (2016). Eye movement training and suggested gaze strategies in tunnel vision-a randomized and controlled pilot study. Plos One, 11, e0157825.
. (2016). Lokalisation von Skotomen mittels Lesetest bei AMD - Localization of scotomas in AMD by reading test. Der Ophthalmologe, 113, 754–762.
. (2015). Parafoveal contributions to retinal function during ranibizumab therapy for age-related macular degeneration. Canadian Journal Of Ophthalmology/journal Canadien D'ophtalmologie, 50, 37–43.
. (2015). Random Word Recognition Chart Helps Scotoma Assessment in Low Vision. Optometry And Vision Science, 92, 421.
. (2013). Everyday use of modern microperimetry in a low-vision service. Canadian Journal Of Ophthalmology/journal Canadien D'ophtalmologie, 5, e99–e101.
. (2011). Target search and identification performance in low vision patients. Investigative Ophthalmology & Visual Science, 52, 7603–7609.
. (2010). Aging and visual counting. Plos One 5(10): E13434.
. (2010). An improved algorithm for automatic detection of saccades in eye movement data and for calculating saccade parameters. Behavior Research Methods, 42, 701–708.
. (2009). Making the best of remaining vision—the role of focal attention. Neuro-Ophthalmology, 33, 127–131.
. (2009). Parafoveal letter recognition at reduced contrast in normal aging and in patients with risk factors for AMD. Graefe's Archive For Clinical And Experimental Ophthalmology, 247, 43–51.
. (2008). Characteristics of dynamic processing in the visual field of patients with age-related maculopathy. Graefe's Archive For Clinical And Experimental Ophthalmology, 246, 27–37.
. (2007). Cueing attention by relative motion in the periphery of the visual field. Perception, 36, 955-970.
. (2007). Eccentric fixation in Stargardt’s disease assessed by Tübingen perimetry. Investigative Ophthalmology & Visual Science, 48, 5815–5822.
. (2007). Gaze-contingent display for retinal function testing by scanning laser ophthalmoscope. Josa A, 24, 1402–1410.
. (2006). Modulation of visual stimulus discrimination by sustained focal attention: an MEG study. Investigative Ophthalmology & Visual Science, 47, 1225–1229.
. (2004). Eye movement control during single-word reading in dyslexics. Journal Of Vision, 4, 388-402.
. (2002). Pictogram naming in dyslexic and normal children assessed by SLO. Vision Research, 42, 789–799.
. (2001). Rapid, object-based learning in the deployment of transient attention. Perception, 30, 1375–1388.
. (2000). Topographic Measurements of Low Contrast Letter Recognition as as a tool for diagnosis and vision rehabilitation. Vision Rehabilitation.
. (2000). Enhancement of peripheral letter recognition by typographic features. Visual Impairment Research, 2, 95–103.
. (2000). Typefaces Influence Peripheral Letter Recognition and Can be Optimized for Reading with Eccentric Viewing. Vision Rehabilitation, C.stuen Et Al.(Eds), 293-294.
. (2000). The importance of sustained attention for patients with maculopathies. Vision Research, 40, 1539–1547.
. (1999). Use your PC to quickly map remaining vision after foveal vision loss. Perimetry Update 1998/1999,, 307–316.
. (1998). Enhancement of letter recognition by explicit and implicit cueing of transient focal attention. Osa Technical Digest, Sac5, 1, 104-107.
. (1996). Quick assessment of the topography of macular vision loss using a new PC-based field analyzer. Proc. Of The Int'l Low Vision Conference.
. (1994). Mapping the topography of residual vision after macular vision loss. Low Vision - Research And New Developments In Rehabilitation., 59–67.
. (1994). Comparison of three ways to assess residual vision after macular vision loss. Low Vision-Research And New Developments In Rehabilitation", Kooijman Ac Et Al.(Eds.), 51–58.
. (1993). The assessment of residual vision in patients with maculopathies. Non-invasive assessment of the visual system. {Osa} Technical Digest, 3, 274–277.
. (1989). Sustained and transient components of focal visual attention. Vision Research, 29, 1631–1647.
. (1982). Steady state visual evoked potentials in the alert primate. Vision Research, 22, 1261–1271.
. (1980). Narrow spatial and temporal frequency tuning in the alert monkey {VEP}. Brain Research, 193, 263–267.
. (1978). Pursuit eye movements and their neural control in the monkey. Pflügers Archiv European Journal Of Physiology, 377, 15–23.
Conference Papers
. (2005). How patients scan images after foveal vision loss: scanning efficiency and SLO analysis of scanning eye movements. In International Congress Series (Vol. 1282, pp. 645–646). Elsevier.
Colenbrander lab
To explore vision-related functioning as it relates to Vision Rehabilitation.
This involves the development of
= insights into vision-related functioning and complex vision-related behaviors,
as well as
= the...
MacKeben Lab
Work in this laboratory is devoted to researching facts and developing tools to help the rehabilitation of people with low vision, especially those with macular vision loss.
Reading Random Word Sequences (The SKread Test)
This vision test shows random word sequences that prevent the prediction of upcoming words by linguistic criteria and is simple to score in a clinical setting.
It combines the standardized format of the MNread test with sequences of random words and...
The Macular Mapping Test
The Macular Mapping Test (MMT) is a tool for the assessment of the topography of vision. It is a quick and low-cost alternative to conventional perimetry in practical low vision care.
While standard perimetry uses a detection task, the MMT measures the...
Self-exploration of the Visual Field
Patients with spots of diminished or no vision (scotomas) often do not realize...
Is Macular Degeneration just Macular?
Diminished motion perception was used as indicator of early effects of eye diseases in the periphery of the visual field. We investigated whether subtle defects in patients with age-related maculopathy (ARM) can be found in regions of the retina that lie outside the macula, i.e...
Micro-Perimetry by Scanning Laser Ophthalmoscope (completed)
We developed software to make the retinal placement of stimuli during micro-perimetry by a scanning laser ophthalmoscope (SLO) independent of involuntary fixational eye movements. This greatly increases the accuracy of the measurement and enhances the ability to reliably repeat...
Motion as a Cue for Attention (completed)
We investigated whether relative motion can serve as a cue for sustained...
Focal Attention and Letter Recognition (completed)
We studied letter recognition in 8 deg eccentricity from the fovea after attracting sustained focal attention to the stimulated location by a cue. Young and elderly healthy subjects, as well as patients with central vision loss participated. We found that the ability to utilize...
Reading with the Retinal Periphery (completed)
Typographical features of letters were manipulated in such a way that frequently occurring letter confusions in eccentric viewing happened less frequently. This demonstrated that a combination of psychophysics and goal-directed modification of typographic features is a viable...
Dyslexia Project (completed)
We studied the ability of dyslexic young teenagers to fluently name pictograms (shapes of objects). We found that some dyslexics are very good at this task, some were even better than the control subjects.
We also investigated whether dyslexics make...
The Macular Search Test
We introduced a novel approach to topographic function assessment in visual impairment that requires neither fixation nor reading.
The test measures the time it takes for patients to find and identify 32 targets on a screen. The task discourages steady...
Regressions in Braille Reading
This project explores regressions (movements to re-read text) in braille reading.
The image on the right...
Contact Information
2318 Fillmore Street
San Francisco, CA 94115
Room #
416
Email:
mm@ski.org
Office Phone:
(415) 345-2112
Lab Phone:
(415) 345-2005
Fax:
(415) 345-8455