Virtual Eye Simulation: An Aid in Evaluation of Capsular Block Syndrome

Table 1: Clinical features of three capsular block syndrome cases.

Clinical Features	Case 1	Case 2	Case 3
Gender	Male	Male	Female
Age (years old)	71	67	70
Size of CCC (mm)	5.5	5.5	5.5
Time of presentation after cataract surgery	4 days	4 years	5 years
Intraocular Pressure (mm Hg)	10	16	11
BCVA	–	–	–
Pretreatment^a	20/40	20/100	20/25
Post-treatment^a	20/25	20/25	20/25
Refraction (D)	–	–	–
Pretreatment^a	-4.0/-4.0 x 85	+1.0/ -2.0 x 90	+0.0/ -0.5 x 100
Post-treatment^a	-0.5/-2.25 x 65	+0.0/ -1.0 x 75	-0.5/ -0.5 x 95
Posterior distention of capsule (mm)^b	Clear fluid about 3 mm thick	Milky-white fluid about 1 mm thick	Milky-white fluid about 1 mm thick
ACD (mm)	–	–	–
Pretreatment^a	1.99	3.94	4.71
Post-treatment^a	3.14	4.08	4.40
Changes in ACD (mm)	+1.15	+0.14	-0.31
Previous surgery	Macula pucker, s/p PPV OD a year before	PDR with Vitreous hemorrhage, s/p PPV OS 5 years before	None
Intraocular Lens	–	–	–
Axial length (mm)	24.37	23.23	22.83
Power	21.5 D	23.5 D	20.0 D
Material	hydrophilic acrylic lens	hydrophilic acrylic lens	hydrophilic acrylic lens

Abbreviations: ACD, Anterior Chamber Depth; BCVA, Best Corrected Visual Acuity; CCC, Continuous Curvilinear Capsulorhexis; PPV, Pars Plana Vitrectomy; PDR, Prolierative Diabetic Retinopathy;
^aUCVA, BCVA, refraction, and ACD changes of capsular block syndrome cases before and after Nd:YAG laser capsulotomy.
^bData detected by Pentacam Scheimpflug imaging before Nd:YAG laser capsulotomy. Approximated by measuring the relative thickness of the posterior distension to anterior chamber depth.