evidence, the Board concludes that in addition to the already compensated for residuals of right upper extremity weakness and numbness and mild speech dysfluency, dysarthria, and stuttering, when affording him the benefit-of-the-doubt, the Veteran also has central visual field defects attributable to his stroke.  However, no other residuals have been shown.

In this case, although the Veteran has Stargardt's disease, long preceding his 2005 stroke, the 2014 central nervous system examiner's opinion indicates that the Veteran has central visual field defects as a residual of his stroke.  The Veteran's reports of increasing vision problems after his stroke are consistent with the examiner's opinion.  In finding that the Veteran has visual field defects as a residual, the Board acknowledges the opinion of the eye conditions examiner. accords more probative value to the 2015 psychiatric examiner's opinion, provided by a psychologist, than to the 2014 central nervous system examiner's opinion of psychiatric symptoms attributable to the stroke, provided by a neurologist.  The 2015 examiner discussed the 2008 testing as well as the Veteran's other pertinent treatment records.  Considering the thoroughness of 2015 psychiatric examination specifically provided by a psychologist as opposed to a neurologist, the 2008 testing results, and the Veteran's mothers and his statements in 2007 and 2011, the evidence does not support a finding that the Veteran has identifiable psychiatric and/or cognitive residuals for which compensation can be granted as a result of his 2007 stroke.  

Although lay persons are competent to provide opinions on some medical issues, see Kahana