Comparison of Two Laser Capsulotomy Techniques: Cruciate Versus Circular

Abstract

Both the cross-like and circular Nd:YAG laser capsulotomy techniques induce similar visual and IOP changes. The circular technique is associated with a higher amount of energy used, more floater symptoms, and has a greater effect on macular thickness at one day after laser capsulotomy.

The influence of size and shape of Nd:YAG capsulotomy on visual acuity and refraction

“…The mean pre-procedural IOP was 16.15 ± 2.71 mmHg (10-20) in Group 1, 14.86 ± 2.63 mmHg (11)(12)(13)(14)(15)(16)(17)(18)(19) in Group 2, 15.31 ± 3.59 mmHg (9-21) in Group 3, and 15.43 ± 1.94 mmHg (2-19) in Group 4. There was no statistical differences between groups (p=0.452).…”

“…There was no statistical differences between groups (p=0.452). The mean post-procedural IOP was 16.55 ± 2.48 mmHg (11)(12)(13)(14)(15)(16)(17)(18)(19)(20)(21) in Group 1,14.65 ± 2.56 mmHg (10)(11)(12)(13)(14)(15)(16)(17)(18) in Group 2, 15.36 ± 3.23 mmHg (11)(12)(13)(14)(15)(16)(17)(18)(19)(20)(21) in Group 3, and 15.34 ± 1.96 mmHg (12)(13)(14)(15)(16)(17)(18)(19) in Group 4. There was no statistical differences between groups (p=0.125, Figure 5).…”

“…Cruciate and circular shapes are most commonly performed with a wide range of opening sizes (3-6 mm). Specific capsulotomy shapes and sizes confer particular advantages and disadvantages (14,15) . In this study, we evaluated the effect of Nd:YAG capsulotomy size and shape on visual outcomes.…”

The Effects of Different Techniques and Energy Used in Nd: Yag Laser Posterior Capsulotomy on Intraocular Pressure: A Prospective Study

“…There are certain complications associated with the Nd: Yag laser capsulotomy like -transient intra ocular pressure elevation, cystoid macular odema, corneal odema, pitting of intraocular lens, IOL damage, decentration and dislocation into the vitreous, iritis, anterior vitreous phase destruction and opacification, retinal tears and detachments, lowering of endothelial cell count and macular hemorrhage [8]. Among these rise in IOP is the most common side effect of Nd: Yag laser capsulotomy [9].…”

“…The two posterior capsulotomy techniques most commonly used nowadays are cruciate technique and circular techniques [8,10]. In cruciate method the first pulsed laser shot is given off the visual axis and following shots are given horizontally in visual axis and then this is expanded in vertical axis [8].…”