Comparisons of Effective Fields of Two Ultra-Widefield Ophthalmoscopes, Optos 200Tx and Clarus 500

Table 1

Demographic data of 90 eyes of 90 patients who underwent retinal photography by both Optos® 200Tx and Clarus™ 500.

Parameter	Value
Number of eyes/subjects	90/90
Age, mean ± SD, year	60.1 ± 15.8
Sex
Men	59
Women	31
Lens
Phakic	69
Pseudophakic	21
Vitreous
Vitreous	81
Avitreous	9
Disease
Cataract	31
Glaucoma	21
Diabetic retinopathy	11
Rhegmatogenous retinal detachment	7
Uveitis	3
Retinal vein occlusion	3
Age-related macular degeneration	3
Macular dystrophy	2
Macular hole	1
Central serous chorioretinopathy	1
Epiretinal membrane	1
Coat’s disease	1
Normal subject	5