Comparison of 532 nm Micropulse Green Laser versus Continuous-Wave 532 nm Green Laser in Chronic Central Serous Chorioretinopathy: Long-Term Follow-Up

Table 1

Descriptive statistics for selected ophthalmological parameters in the studied patients diagnosed as having chronic central serous chorioretinopathy and treated with Micropulse Laser Treatment (MLT) and conventional Continuous-wave Laser (CL).

			Mean ± SD	(Min-max)	Mean ± SD	(Min–max)	Mean ± SD	(Min-max)
			Baseline		1 month		12 months
MLT	()	Visual acuity	0.53 ± 0.16	6/19–6/7.5	0.84 ± 0.17	6/12–6/6	0.89 ± 0.13	6/9.5–6/6	<0.001
	(†)	Central retinal thickness (μm)	201.5 ± 33.8	132–257	175.7 ± 29.0	108–228	174.1 ± 27.3	108–236	<0.001
	(‡)	Photoreceptors length (μm)	82.8 ± 18.8	56–134	66.2 ± 15.1	40–119	61.2 ± 12.6	40–106	<0.001
	()	Subretinal fluid (μm)	166.6 ± 96.4	21–430	35.5 ± 27.0	0–127	12.4 ± 27.7	0–126	<0.001
CL	()	Visual acuity	0.52 ± 0.20	6/30–6/7.5	0.69 ± 0.18	6/19–6/6	0.71 ± 0.17	6/19–6/6	<0.001
	(†)	Central retinal thickness (μm)	198.8 ± 57.5	64–337	173.9 ± 47.9	65–260	194.9 ± 54.8	65–260	= 0.233
	(‡)	Photoreceptors length (μm)	82.5 ± 23.1	26–123	56.8 ± 18.4	20–90	42.9 ± 8.9	20–55	<0.001
	()	Subretinal fluid (μm)	199.2 ± 87.9	37–315	27.1 ± 30.3	0–111	12.2 ± 30.1	0–111	<0.001
	Significance level		()		(†)		(‡)		()