Abstract
BackgroundThe prevalence of primary iris and/or ciliary body cysts is common in myopia, though asymptomatic in nearly all cases. It’s a very valuable thing to study the clinical safety and reliability of implantable collamer lens (ICL) surgery in patients with primary iris and/or ciliary body cysts.MethodsA total of 108 patients (201 eyes) were included in this retrospective study. All eyes had been implanted with V4c implantable collamer lens (ICLV4c). According to the eyes with or without primary iris and/or ciliary body cysts, all eyes were divided into two groups. We observed preoperative and postoperative uncorrected distance visual acuity (UDVA), corrected distance visual acuity)(CDVA), intra-ocular pressure(IOP), anterior chamber volume(ACV), anterior chamber depth(ACD), trabecular-iris angle (TIA), angle opening distance at 500 μm (AOD500),vertical central distance between the corneal endothelium and the front surface of ICL(CE-ICL), and the central vault. The follow-up periods covered 12 months.ResultsAmong all the 201 eyes, primary iris and/or ciliary body cysts were detected in 54 eyes (26.87%),but the prevalence was account to 36.11%(18males,21females).There were 30 eyes (55.56%) with unilateral single cyst, 12 eyes (22.22%) with unilateral double cysts, 12 eyes (22.22%) eyes with unilateral multiple and/or multi-quadrants cysts, the mean size of cysts was (0.714 ± 0.149)mm(range from 0.510 to 1.075 mm).30.4% of the cysts were located at iridociliary sulcus, 65.5% in pars plicata, and 4.1% in midzonal iris, which showed a characteristic distribution pattern, with cysts found predominantly in the inferior and temporal quadrants.The postoperative size and the number of cysts showed nearly no changes. The postoperative ACV, AOD500 and TIA showed a statistical reduction in both two groups (P < 0.05), but with no statistical significant between the two groups (P > 0.05), the parameters of postoperative IOP,CE-ICL and central vault also showed the same results as which. We did not observe serious complication and IOP elevating in the whole follow-up periods.ConclusionPrimary iris and/or ciliary body cysts are not absolutely contraindication for ICL surgery. For some single cyst smaller than 1.075 mm or single quadrant cysts located at ciliary body are rare to lead some serious complications. But, for some multiple cysts, especially multi-quadrants cysts located at iridociliary sulcus, we still should remain cautions.
Highlights
The prevalence of primary iris and/or ciliary body cysts is common in myopia, though asymptomatic in most cases
Preoperative parameters showed no statistical difference between the two groups in the terms of biometric data, uncorrected distance visual acuity (UDVA), Corrected distance visual acuity (CDVA), intra-ocular pressure (IOP), anterior chamber depth (ACD), anterior chamber volume (ACV), Angle opening distance at 500 μm (AOD500), trabecular-iris angle (TIA) and corneal thickness (CT) (Table 1)
Primary iris and ciliary body cysts Among all the 201 eyes, primary iris and/or ciliary body cysts were detected in 54 eyes (26.87%), but the prevalence of cysts in patients was account to 36.11% (18males,21females)
Summary
The prevalence of primary iris and/or ciliary body cysts is common in myopia, though asymptomatic in most cases. It’s a very valuable thing to study the clinical safety and reliability of implantable collamer lens (ICL) surgery in patients with primary iris and/or ciliary body cysts. The prevalence of primary iris and/or ciliary body cysts in myopia is common, especially in young adult or middle-aged women [5]. There were no relative reports about the safety and reliability of ICL implantation in patients with iris and/or ciliary body cysts. Our research was aimed to evaluate the clinical safety and reliability of ICL surgery in patients with primary iris and/or ciliary body cysts
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