Retrospective Study of Contact Lens Fitting in Pellucid Marginal Degeneration

Mahadevan, Rajeswari; Amudhaoli, A; Valarmathi, A

doi:10.1097/icl.0b013e318160f329

Cited by 9 publications

(6 citation statements)

References 5 publications

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“…The non-surgical management of PMD includes spectacles and different groups of contact lenses ( 6 - 8 ), yet these procedures lose their effectiveness as the disease progresses. Patients with high or irregular astigmatism cannot be corrected with spectacles; in these cases, contact lens fitting is more difficult in pellucid eyes than keratoconic eyes as a result of central flattening and peripheral steepening ( 9 - 12 ).…”

Section: Introductionmentioning

confidence: 99%

RETRACTED ARTICLE: Full-Ring Intracorneal Implantation in Corneas With Pellucid Marginal Degeneration

Nobari¹,

Villena²,

Jadidi

2015

Iran Red Crescent Med J

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Background:Keratoconus (KCN) is a progressive, non-inflammatory ectacic disorder characterized by bilateral and asymmetrical conical protrusion of the cornea. MyoRing implantation and Collagen Crosslink (CXL) are two separate effective treatments for all stages of keratoconous. This study wants to show the effect of these treatments combination in patients with moderate and severe keratoconus. Objectives:The aim of this study was to report on the visual and refractive outcomes of corneas with pellucid marginal degeneration following MyoRing implantation (DIOPTEX GmbH).Patients and Methods:This study included 15 eyes of 15 patients, with an age range from 22 to 49 years old, and pellucid marginal degeneration. An intrastromal corneal ring (MyoRing) was inserted by the means of mechanical dissection using a PocketMaker microkeratome. The main outcome measures were uncorrected distance visual acuity (UDVA), corrected distance visual acuity (CDVA), manifest refraction, and keratometry readings. The mean postoperative follow-up was ten months (range 6 - 12 months).Results:The mean UDVA (LogMAR) improved significantly from 1.13 ± 0.21 preoperatively to 0.24 ± 0.13 postoperatively (P < 0.001), and the mean CDVA (LogMAR) improved significantly from 0.39 ± 0.12 to 0.19 ± 0.09 (P < 0.001). The mean cylinder of manifest refraction decreased significantly by 4.00 diopter (D) (P < 0.001). The mean spherical equivalent error (SE) decreased significantly from −6.00 ± 3.60 D to −0.70 ± 1.90 D, at the end of the follow-up period. Furthermore, with regards to corneal topography, a significant reduction was observed in keratometric values. The Kmax, Kmin and Kaverage decreased significantly by 5.00, 1.10 and 4.00 D, respectively (P < 0.001).Conclusions:MyoRing implantation using the PocketMaker microkeratome appears to provide an effective method for treating pellucid marginal degeneration. Both UDVA and CDVA improved significantly. The corneal steepening and astigmatism were reduced in all subjects after MyoRing implantation.

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Section: Introductionmentioning

confidence: 99%

RETRACTED ARTICLE: Full-Ring Intracorneal Implantation in Corneas With Pellucid Marginal Degeneration

Nobari¹,

Villena²,

Jadidi

2015

Iran Red Crescent Med J

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“…Most patients with PMD are treated non-surgically with spectacles or contact lenses. 1,9,10,30,31 Soft and hybrid contact lenses can be used in early PMD, but lose their effectiveness Pellucid Marginal Degeneration/Moshirfar et al as the disease progresses. [31][32][33][34][35][36][37][38] In moderate PMD, the development of irregular astigmatism and progressive corneal irregularity often necessitates the use of large diameter rigid gas permeable lenses.…”

Section: Cornea-independent Interventionsmentioning

confidence: 99%

“…1,9,10,30,31 Soft and hybrid contact lenses can be used in early PMD, but lose their effectiveness Pellucid Marginal Degeneration/Moshirfar et al as the disease progresses. [31][32][33][34][35][36][37][38] In moderate PMD, the development of irregular astigmatism and progressive corneal irregularity often necessitates the use of large diameter rigid gas permeable lenses. 9,10,30,31,39 Specialized contact lenses such as reverse geometry lenses and "bi-toric" lenses have proven useful in the management of moderate PMD.…”

Section: Cornea-independent Interventionsmentioning

confidence: 99%

“…[31][32][33][34][35][36][37][38] In moderate PMD, the development of irregular astigmatism and progressive corneal irregularity often necessitates the use of large diameter rigid gas permeable lenses. 9,10,30,31,39 Specialized contact lenses such as reverse geometry lenses and "bi-toric" lenses have proven useful in the management of moderate PMD. [40][41][42] Customized soft contact lenses have theoretical potential in treating moderate PMD given their success in keratoconus.…”

Section: Cornea-independent Interventionsmentioning

confidence: 99%

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Current Options in the Management of Pellucid Marginal Degeneration

Moshirfar¹,

Edmonds²,

Behunin³

et al. 2014

J Refract Surg

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“…8,13 In addition, specialized contact lenses, such as reverse geometry lenses and "bi-toric" lenses can be useful in the management of moderate PMD. 14,15 In advanced PMD, the scleral contact lens is a helpful nonsurgical treatment when the fitting with corneal lenses is extremely difficult because of the peripheral location of the ectasia.…”

Section: Nonsurgical Corneal Rehabilitation Treatmentmentioning

confidence: 99%

Treatment of Pellucid Marginal Degeneration

Farrag¹,

Hussein²,

Ummar³

2017

International Journal of Keratoconus and Ectatic Corneal Diseases

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Purpose: To summarize the recent trends in the treatment of pellucid marginal degeneration (PMD) based on available published data.Method and literature search: A PubMed search was conducted with combinations not limited to the following search terms: Pellucid marginal degeneration, Corneal ectasia, Corneal collagen cross-linking (CXL), Intracorneal ring segments (ICRS), Contact lens, Keratoplasty in corneal ectasia. A review of the search results was performed and relevant articles to the topic were included. Summary:Ophthalmologists have got a wide array of therapeutic modalities for the management of PMD. However, the key to optimal treatment is careful clinical assessment of patients and their visual requirements and tailoring the treatment to individual patients.

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Retrospective Study of Contact Lens Fitting in Pellucid Marginal Degeneration

Abstract: Calculation of appropriate base curve of the lens by stability factor method is found to be the best method to start with a trial in PMCD.

Cited by 9 publications

References 5 publications

RETRACTED ARTICLE: Full-Ring Intracorneal Implantation in Corneas With Pellucid Marginal Degeneration

RETRACTED ARTICLE: Full-Ring Intracorneal Implantation in Corneas With Pellucid Marginal Degeneration

Current Options in the Management of Pellucid Marginal Degeneration

Treatment of Pellucid Marginal Degeneration

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