Contact Lens Applications and the Corneal Dystrophies

Kwan, Justin; Dalton, Kristine; Weissman, Barry A.

doi:10.1097/icl.0000000000000170

Cited by 4 publications

(4 citation statements)

References 39 publications

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“…There are some cases in which fitting a contact lens can slow the condition or aid resolution of symptomatic episode. The current knowledge in the field reviewed providing insight into each corneal dystrophy and the methods and rationale for contact lens management [374]. Most evidence, such as for Meesmann corneal dystrophy [375], are only from case reports.…”

Section: Corneal Dystrophy -Reis-buckler Meesmann Epithelial Basement Membrane Dystrophy and Othersmentioning

confidence: 99%

BCLA CLEAR – Medical use of contact lenses

Jacobs

Carrasquillo²,

Cottrell

et al. 2021

Contact Lens and Anterior Eye

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The medical use of contact lenses is a solution for many complex ocular conditions, including high refractive error, irregular astigmatism, primary and secondary corneal ectasia, disfiguring disease, and ocular surface disease. The development of highly oxygen permeable soft and rigid materials has extended the suitability of contact lenses for such applications. There is consistent evidence that bandage soft contact lenses, particularly silicone hydrogel lenses, improve epithelial healing and reduce pain in persistent epithelial defects, after trauma or surgery, and in corneal dystrophies. Drug delivery applications of contact lens hold promise for improving topical therapy. Modern scleral lens practice has achieved great success for both visual rehabilitation and therapeutic applications, including those requiring retention of a tear reservoir or protection from an adverse environment. This report offers a practical and relevant summary of the current evidence for the medical use of contact lenses for all eye care professionals including optometrists, ophthalmologists, opticians, and orthoptists. Topics covered include indications for use in both acute and chronic conditions, lens selection, patient selection, wear and care regimens, and recommended aftercare schedules. Prevention, presentation, and management of complications of medical use are reviewed.

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Section: Corneal Dystrophy -Reis-buckler Meesmann Epithelial Basement Membrane Dystrophy and Othersmentioning

confidence: 99%

BCLA CLEAR – Medical use of contact lenses

Jacobs

Carrasquillo²,

Cottrell

et al. 2021

Contact Lens and Anterior Eye

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“…Neben den hier besprochenen operativen Herangehensweisen kommen auch (weiche und harte) Kontaktlinsen bei Patienten mit verschiedenen Hornhautdystrophien zum Einsatz. Neben einer Reduktion von Schmerzen und Beschwerden durch die alterierte Hornhautoberfläche kann mit Kontaktlinsen auch ein durch die Dystrophie induzierter (größtenteils irregulärer) Astigmatismus (teil-)korrigiert werden und so eine Visusverbesserung erreicht werden [16]. Auch wird die postoperative Versorgung mit Kontaktlinsen zur Rezidivprophylaxe diskutiert.…”

Section: Behandlung Epithelialer Und Stromaler Hornhaut Dystrophien Munclassified

“…Dadurch sollen die Epithelzellen weniger lange auf der Hornhautoberfläche verbleiben und könnten somit auch weniger degeneratives Material produzieren, sodass weniger Ablagerungen im Hornhautstroma zu erwarten wären. Ob und in welchem Maße der regelhafte Gebrauch von Kontaktlinsen die Progression einer Dystrophie beeinflussen könnte, ist aber nach wie vor nicht geklärt [16].…”

Section: Behandlung Epithelialer Und Stromaler Hornhaut Dystrophien Munclassified

Die Limbokeratoplastik zur Behandlung von gittrigen und granulären Hornhautdystrophien

Lapp

Maier

Böhringer

et al. 2018

Klin Monatsbl Augenheilkd

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The surgical technique of limbokeratoplasty (limbo-KP) was initially established for the treatment of severe limbal deficiencies. Besides improving visual acuity, surgery is aimed at ensuring complete, long-lasting epithelialization of the ocular surface. Due to the extension of the indication spectrum, limbo-KPs are also used in various forms of epithelial/stromal corneal dystrophies such as lattice and granular (transforming growth factor beta-induced [TGFBI] gene mutation associated) dystrophies. The objective of limbo-KP is to ensure prolonged clear graft survival without a recurrence of the dystrophy as otherwise observed after conventional keratoplasty.

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“…RGP lenses have the benefit of masking corneal irregularities, thus providing a regular anterior refractive surface [10]. erefore, they have been also successfully used to treat other corneal ectasias, including irregular corneas following photorefractive surgery, penetrating keratoplasty, and corneal dystrophies [10][11][12]. Comparative studies demonstrated that specialty design contact lenses, new design scleral lenses, and hybrid lenses have better patients' comfort [8] levels than that by conventional RGP lenses [13].…”

Section: Introductionmentioning

confidence: 99%

Results of the Pinhole Test Correlate with Hybrid Contact Lens Visual Acuity in Patients with Visual Impairment due to Corneal Diseases

Kanclerz

2022

Journal of Ophthalmology

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Introduction. Trial rigid lens fitting is considered the best approach to determine whether the correction of residual defocus and irregular astigmatism might improve the visual acuity in patients with corneal disorders including keratoconus. This study aimed to analyze the correlation between hybrid lenses and pinhole visual acuity (VA). Methods. Patients undergoing hybrid contact lens fitting at the Hygeia Clinic, Poland, were included. The VA of each patient was assessed as decimal Snellen fractions under the following conditions: (i) uncorrected VA, (ii) VA with spherocylindrical correction (i.e., corrected distance VA), (iii) VA with a single 1.2 mm pinhole occluder, and (iv) VA with the best-fitted hybrid contact lens. Pearson’s correlation coefficient r was used to assess correlations among variables. Results. This study involved 29 eyes of 19 patients, mainly with advanced keratoconus. The uncorrected VA was 0.11 ± 0.10. The pinhole test provided significantly improved VA over corrected distance VA (0.51 ± 0.29 vs. 0.31 ± 0.20, respectively; p < 0.0001 ). Similarly, the fitted hybrid contact lenses provided improved VA over corrected distance VA (0.66 ± 0.26 vs. 0.31 ± 0.20, respectively; p < 0.0001 ). The pinhole VA was strongly correlated with the hybrid contact lens VA (r = 0.8135; 95% CI: 0.61–0.92; p < 0.0001 ). The improvement in the pinhole test over corrected distance VA was moderately correlated with the improvement with the fitted lens over corrected distance VA (r = 0.6269; 95% confidence interval (CI): 0.32–0.80; p = 0.0005 ). Conclusions. A significant improvement in VA with the pinhole test is a simple predictor of general improvement with hybrid contact lenses. The pinhole test should be used in patients with corneal diseases such as keratoconus to determine whether optical aberrations associated with the disease cause their visual impairment.

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Contact Lens Applications and the Corneal Dystrophies

Cited by 4 publications

References 39 publications

BCLA CLEAR – Medical use of contact lenses

BCLA CLEAR – Medical use of contact lenses

Die Limbokeratoplastik zur Behandlung von gittrigen und granulären Hornhautdystrophien

Results of the Pinhole Test Correlate with Hybrid Contact Lens Visual Acuity in Patients with Visual Impairment due to Corneal Diseases

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