Clinical Study

The Effect of ND:YAG Laser Posterior Capsulotomy Size on Refraction, Intraocular Pressure, and Macular Thickness

Table 1

Comparison of mean capsulotomy size, BCVA, SE, IOP, and macular thickness between groups before Nd:YAG laser capsulatomy and 1, 4, and 12 weeks after Nd:YAG laser capsulotomy.

Group 1
( )
Group 2
( )
value

Capsulotomy size3.43 ± 0.344.56 ± 0.47 0.000*
BCVA (LogMAR)
 Pretreatment0.61 ± 0.150.66 ± 0.180.209
 1 week0.18 ± 0.100.17 ± 0.130.776
 4 weeks0.18 ± 0.120.20 ± 0.120.637
 12 weeks0.21 ± 0.160.20 ± 0.120.834
SE (diopters)
 Pretreatment−1.12 ± 1.23−1.26 ± 1.260.630
 1 week−0.95 ± 1.09−0.89 ± 1.060.841
 4 weeks−0.93 ± 1.04−0.82 ± 1.020.662
 12 weeks−0.91 ± 1.05−0.80 ± 1.050.663
IOP (mmHg)
 Pretreatment15.44 ± 2.7315.37 ± 3.610.929
 1 week16.33 ± 2.4217.40 ± 3.260.126
 4 weeks15.13 ± 2.6815.25 ± 3.950.892
 12 weeks14.83 ± 2.1015.71 ± 2.300.102
Macular thickness (µm)
 Pretreatment247.5 ± 31.3 244.5 ± 37.20.720
 1 week262.8 ± 27.2259.9 ± 24.90.652
 4 weeks247.3 ± 36.8246.7 ± 32.50.945
 12 weeks246.0 ± 29.6242.9 ± 28.70.665

BCVA: best-corrected visual acuity; SE: spherical equivalent; IOP: intraocular pressure; LogMAR: logarithm of the minimum angle of resolution.
*Statistically significant.