Posterior-Chamber Phakic Intraocular Lens Implantation in Patients over 40 Years of Age

Table 1

Preoperative patient demographics and ICL characteristics.

	Mean ± SD	Range [min, max]
Age (years)	43.52 ± 4.49	[40, 56]
Refraction sphere (D)	−8.18 ± 2.66	[−13.5, −2]
Refraction cylinder (D)	−1.55 ± 1.18	[−4.0, 0]
Spherical equivalent (D)	−8.46 ± 3.31	[−14.88, −1.88]
Corneal thickness (μm)	535.18 ± 36.66	[452, 580]
CDVA (decimal)	0.88 ± 0.18	[0.40, 1.00]
ACD (mm)	3.07 ± 0.26	[2.67, 3.59]
WTW (mm)	12.16 ± 0.41	[11.30, 12.70]
ATA (mm)	12.07 ± 0.39	[11.50, 12.79]
ECD (cells/mm2)	2568 ± 332	[2004, 3297]
IOP (mmHg)	16.23 ± 3.61	[10, 24]
ICL sphere (D)	−9.52 ± 2.65	[−15.0, −1.0]
ICL cylinder (D)	2.65 ± 1.23	[1, 4.5]
ICL size (mm)	12.96 ± 0.35	[12.10, 13.20]

ICL: implantable Collamer lens; SD: standard deviation; D: diopters; CDVA: corrected-distance visual acuity; ACD: anterior chamber depth; WTW: white-to-white; ATA: angle-to-angle; ECD: endothelial cell density; IOP: intraocular pressure.