Surface Modification of Rigid Gas Permeable Contact Lens Treated by Using a Low-Temperature Plasma in Air

Shin, Hyung Sup; Jang, Jun Kyu; Kwon, Yong Seung; Mah, Kichoong

doi:10.3938/jkps.55.2436

Cited by 10 publications

(4 citation statements)

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“…SLS developed standardized terminology using scientific language to cover all elements of SCL fabrication, fitting, and management [ 6 ]. Table 1 shows the summarized lens parameters with their respective acronyms and measurement units [ 6 , 7 ]. This new terminology allows manufacturers to provide uniform labeling information to ophthalmologists and optometrists, facilitate customized lens fitting, and compare various designs.…”

Section: Resultsmentioning

confidence: 99%

Update on indications, complications, and outcomes of scleral contact lenses

Ruiz-Lozano¹,

Gomez-Elizondo²,

Colorado-Zavala³

et al. 2022

Med Hypothesis Discov Innov Ophthalmol

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Background: The role of scleral contact lenses (SCLs) has increasingly expanded since the first lens was fitted more than a century ago. While it was initially prescribed for the management of severely compromised corneas, the indications for modern SCL use have expanded to include less severe diseases. In this review, we aimed to provide an up-to-date overview of the current indications, complications, and outcomes for the various types of SCLs. Methods: In this narrative review, we thoroughly searched the PubMed/MEDLINE database for literature published from January 1980 to November 2021. Only relevant up-to-date English references were included. Furthermore, the figures in this manuscript were derived from our unit’s patient documentation. Results: Currently, SCLs can successfully be used to manage ocular surface diseases, visually rehabilitate irregular corneas, and correct irregular refractive errors. Although newer materials have yielded the same visual outcomes with fewer complications, these consequences still occur in approximately one-third of contact lens wearers, including difficulties in insertion and/or removal, discomfort or pain, and developing either halos, blurriness, or haze. Even though most of these complications are minor and can be easily treated, a good practice is essential to avoid sight-threatening complications such as microbial keratitis. Conclusions: SCLs are indispensable in ophthalmic clinics. The development of better-quality SCLs has increased the number of indications and improved the achievable visual rehabilitation. The future of developing improvements in SCL design, materials, and fit, and the expansion of their indication range is promising.

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Section: Resultsmentioning

confidence: 99%

Update on indications, complications, and outcomes of scleral contact lenses

Ruiz-Lozano¹,

Gomez-Elizondo²,

Colorado-Zavala³

et al. 2022

Med Hypothesis Discov Innov Ophthalmol

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“…The process consists of bombarding the lens with ionized oxygen to create a hydrophilic surface and reducing the wetting angle. [ 135 ] Another approach to increase wettability and CL comfort is through polyethylene glycol polymer (PEG) coating following a polymer coating. [ 136 ] Hydra-PEG is a 90% water-based polymer mix that covalently bonds with the surface of the lens, creates a wetting surface over the lens, and separates it from the ocular surface and the tear film.…”

Section: Scleral Lensesmentioning

confidence: 99%

Contact lenses in dry eye disease and associated ocular surface disorders

Chaudhary

Ghimire²,

Basu³

et al. 2023

Indian Journal of Ophthalmology

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Dry eye disease (DED) is prevalent in all age groups and is known to cause chronic ocular discomfort and pain, and greatly affects the quality of life. Patients with ocular surface disease (OSD) may also have reduced tear secretion due to lacrimal gland damage, thus leading to aqueous deficient DED. Even with conventional management modalities such as lubricating eyedrops, topical corticosteroids, autologous serum eyedrops, or punctal plugs, many patients continue to suffer from debilitating symptoms. Contact lenses are increasingly being used in OSD providing surface hydration, protection from environmental insults, mechanical damage from abnormal lids, and as a modality for constant drug delivery to the ocular surface. This review describes the role of soft lenses and rigid gas-permeable scleral lenses in the management of DED associated with OSD. The efficacy of contact lenses, lens selection, and optimal lens fit are reviewed for specific indications.

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“…The authors hypothesized that this approach can potentially be applied to increase the apoptosis of residual cancer cells after the resection of malignant tumors, they found that plasma treatment in this type of tumors caused cell death in pancreatic cancer cells in In vitro, it took up to 10 seconds of treatment to induce apoptosis, while the longer application caused non-apoptotic cell death, in addition to this all effects were leveled after approximately 72 hours after treatment (Figure 5). Plasma treatment can also be used to decrease bacterial adhesion and improve the wettability of contact lenses, thus providing greater comfort for the user [23,[35][36][37][38]. This can be achieved by increasing the hydrophilicity of the surface of the biomaterial with the oxidation of the plasma or by depositing a layer of thin film on its surface [37].…”

Section: Application Of Plasma In Biomaterialsmentioning

confidence: 99%

Use of Cold Plasma Technology in Biomaterials and Their Potential Utilization in Controlled Administration of Active Substances

Céspedes

2018

JOJMS

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Currently the controlled supply of drugs or active substances, in biomedical applications, has reached a high scientific and technological interest, mainly due; to the ability to maintain the optimal concentration of an active substance in the desired location, the greatest attention is directed towards biopolymers and bioceramics, due to the various qualities they exhibit such as: biocompatibility, bioactivity, biodegradability, etc. On the other hand, it is well known that the release profile depends crucially on the surface of these biomaterials. To enhance the advantages of the use of these biomaterials in the controlled dosage of drugs, they can be treated by non-thermal plasma, thus improving their surface characteristics (greater functionality and porosity), without altering the integral properties of the biomaterial. The plasma treatment for surface modification of materials is; green, economical, fast and efficient, by varying the parameters in plasma reactors can be adjusted physical and chemical characteristics in treated materials. This review highlights the most recent approaches to the treatment of plasma applied to different biomaterials, which aims to elucidate the outlook that exists regarding its potential application in the area of administration of drugs or active substances, so that this review can be used as a general guide for the selection of future biomaterials treated by plasma with application in controlled dosing.

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Surface Modification of Rigid Gas Permeable Contact Lens Treated by Using a Low-Temperature Plasma in Air

Cited by 10 publications

References 0 publications

Update on indications, complications, and outcomes of scleral contact lenses

Update on indications, complications, and outcomes of scleral contact lenses

Contact lenses in dry eye disease and associated ocular surface disorders

Use of Cold Plasma Technology in Biomaterials and Their Potential Utilization in Controlled Administration of Active Substances

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