The Arclight Ophthalmoscope: A Reliable Low-Cost Alternative to the Standard Direct Ophthalmoscope

Table 1

Examination scales: (a) ease of use (examiner), (b) comfort scale (subject) and (c) length of examination (subject).

(a) Ease of use	() Could not use at all
	() Could not see the red reflex to even begin with
	() Could identify red reflex
	() Could see vessels but not disc
	() Could identify disc but not vertical CD-ratio (VCDR)
	() Could determine VCDR with a high level of difficulty
	() Could determine VCDR with a medium level of difficulty
	() Could determine VCDR with a low level of difficulty
(b) Comfort scale	() Uncomfortable glare
	() Significant glare
	() Some glare
	() No glare
(c) Length of examination	() Uncomfortably long
	() Long examination time
	() Average examination time
	() Short examination time