Practitioner Learning Curve in Fitting Scleral Lenses in Irregular and Regular Corneas Using a Fitting Trial

Table 3

Number of lenses reordered in each group (irregular and regular cornea) and subgroup (surgical/nonsurgical and low and high astigmatism).

		TOTAL; fittings; (n=156)	IC Group			RC Group
			TOTAL (n=122)	Prim.IC (n=80)	Sec.IC; (n=42)	TOTAL; (n=34)	LA.RC; ≤ 2.00 D; (n=8)	HÁ.RC; ≥ 2.00 D; (n=26)
Cause of reorder	Inadequate Sagittal Height	36	27	12	15	9	3	6
		(30.3)	(30.3)	(13.5%)	(16.9%)	(30.0)	(10.0%)	(20.0%)
	Inadequate Landing Zone	7	5	2	3	2	0	2
		(5.9)	(5.6)	(2.2%)	(3.4%)	(6.7)	(0%)	(6.7%)
	Poor Vision	23	21	16	5	2	0	2
		(19.3)	(23.6)	(18.0%)	(5.6%)	(6.7)	(0%)	(6.7%)
	Discomfort	12	9	5	4	3	3	0
		(10.1)	(10.1)	(5.6%)	(4.5%)	(10.0)	(10.0%)	(0%)
	Poor Vision + Fit	21	11	6	5	10	2	8
		(17.6)	(12.4)	(6.7%)	(5.6%)	(33.3)	(6.7%)	(26.7%)
	Fit	14	11	4	7	3	0	3
		(11.8)	(12.4)	(4.5%)	(7.9%)	(10.0)	(0%)	(10.0%)
	Lens Broke	6	5	3	2	1	0	1
		(5.0)	(5.6)	(3.4%)	(2.2%)	(3.3)	(0%)	(3.3%)
Visit of reorder	Lens Dispensing Visit (V0)	85	64	34	30	21	5	16
		(71.4)	(71.9)	(38.2%)	(33.7%)	(70)	(16.7%)	(53.3%)
	1 week visit	8	6	3	3	2	0	2
		(6.7)	(6.7)	(3.4%)	(3.4%)	(6.7)	(0%)	(6.7%)
	1 month visit (V1)	19	12	6	6	7	3	4
		(16.0)	(13.5)	(6.7%)	(6.7%)	(23.3)	(10.0%)	(13.3%)
	3 month visit (V2)	4	4	3	1	0	0	0
		(3.4)	(4.5)	(3.4%)	(1.1%)	(0)	(0%)	(0%)
	>3 month visit	3	3	2	1	0	0	0
		(2.5)	(3.4)	(2.2%)	(1.1%)	(0)	(0%)	(0%)
	Total number of reorders	119	89	48	41	30	8	22
		(100)	(100)	(53.9%)	(46.1%)	(100)	(26.7%)	(73.3%)

n is the number of fittings; both increased and decreased sagittal height; Poor Fit = both sagittal height and landing zone parameters are inadequate.