The Effect of Silicone Hydrogel Bandage Soft Contact Lens Base Curvature on Comfort and Outcomes After Photorefractive Keratectomy

Taylor, Kenneth R.; Molchan, Ryan P.; Townley, James; Caldwell, Matthew; Panday, Vasudha

doi:10.1097/icl.0000000000000067

Cited by 16 publications

(12 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…A comparison between the two base curves available for this lens has also been carried out: the 8.80 mm BC was found to be more suitable for the postsurgical flatter cornea as compared to 8.40 mm BC and was effective in alleviating postsurgical pain e total symptom scores after SMILE among the 3 groups at different postsurgery time points. Journal of Ophthalmology as well as reducing the incidence of lens loss [4]. Plaka et al [11] found that the 8.80 mm BC lens was also superior to the 8.40 mm BC lens in terms of UCVA at 4 days after operation in their Epi-LASIK patients.…”

Section: Discussionmentioning

confidence: 99%

“…Corneal wound healing and postsurgical comfort are important issues concerning corneal refractive surgeries. The use of BCLs in refractive surgeries such as PRK and LASEK has been proven to be effective and safe [ 4 , 5 ]. Studies have also shown that BCLs applied immediately after LASIK can reduce flap complications and patient discomfort after surgery [ 6 , 17 ].…”

Section: Discussionmentioning

confidence: 99%

“…Previous studies have examined the applications of the same lens for post PRK and LASEK conditions and have compared it with two other SiH CLs; the results showed that this lens was superior when it comes to patients' comfort [ 24 ]. A comparison between the two base curves available for this lens has also been carried out: the 8.80 mm BC was found to be more suitable for the postsurgical flatter cornea as compared to 8.40 mm BC and was effective in alleviating postsurgical pain as well as reducing the incidence of lens loss [ 4 ]. Plaka et al [ 11 ] found that the 8.80 mm BC lens was also superior to the 8.40 mm BC lens in terms of UCVA at 4 days after operation in their Epi-LASIK patients.…”

Section: Discussionmentioning

confidence: 99%

“…Bandage contact lenses (BCLs) are often used to promote corneal wound healing and reduce patient discomfort after laser refractive surgery [ 4 – 6 ], particularly following procedures such as photorefractive keratectomy (PRK) and laser epithelial keratomileusis (LASEK). As there are many different types of contact lens materials and designs available on the market, researchers have been investigating the most suitable type of contact lens to be used after laser refractive surgery [ 7 – 9 ].…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Clinical Observation of Silicon Hydrogel Contact Lens Fitted Immediately after Small Incision Lenticule Extraction (SMILE)

Wang

et al. 2020

Journal of Ophthalmology

View full text Add to dashboard Cite

Purpose. To examine the immediate use of bandage contact lenses (BCLs) for improving patient comfort after small incision lenticule extraction (SMILE) surgery. Methods. This is a prospective randomized controlled study in which one hundred and seventy-eight patients undergoing SMILE were randomly allocated to three groups: group A wore BCLs for 8 hours postsurgery, group B wore BCLs for 24 hours postsurgery, and group C did not wear any BCLs postsurgery. Eight subjective symptoms including photophobia, tearing, pain, foreign body sensation, burning, blurred vision, sting, and dry eyes were prospectively evaluated at 2 hours, 4 hours, 8 hours, and 24 hours, using a questionnaire with a total score of 24. The scores of symptoms and signs were compared between the three groups. Results. There was a statistically significant time effect on scoring, which implicated a decline in symptoms over time after surgery (P<0.001). There was also a significant interaction between time and the treatment group (P<0.01). The total symptom score of groups A and B (5.85 ± 3.97 and 5.99 ± 4.67, respectively) was significantly lower than that of group C at 2 hours postsurgery (7.35 ± 4.86, P<0.05), especially in tearing and pain (P<0.05). The level of corneal oedema at 24 hours postsurgery was also statistically significantly different between the three groups (P<0.001), and the post hoc test showed that groups A and B were lower than group C (P<0.01). Conclusion. Silicon hydrogel BCLs applied immediately after SMILE surgery can relieve postsurgical symptoms of tearing and pain, improving overall patient comfort, and reduce corneal oedema. This trial is registered with ChiCTR-ONRC-13003114. Precis. The application of silicone hydrogel bandage contact lenses immediately after SMILE surgery has the potential to improve patient comfort, corneal healing, and patient satisfaction following SMILE.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Clinical Observation of Silicon Hydrogel Contact Lens Fitted Immediately after Small Incision Lenticule Extraction (SMILE)

Wang

et al. 2020

Journal of Ophthalmology

View full text Add to dashboard Cite

show abstract

“…e ao mesmo tempo reduzir a exposição de mecano-receptores da córnea [80][81][82]. Assim, os protocolos terapêuticos atuais que empregam o uso de lentes de contato juntamente com abordagens farmacológicas demonstram resultados melhores no controle da dor no pós-operatório da PRK.37,38,83 De acordo com Tomás-Juan (2005), as lentes desempenhariam múltiplas funções no período pós-cirúrgico imediato.…”

unclassified

Dor no pós-operatório da ceratectomia fotorrefrativa (PRK) com fosfato de codeína 30 mg/ paracetamol 500 mg: ensaio clínico aleatório

Pereira¹

View full text Add to dashboard Cite

Background: Refractive surgery is a common procedure, but may be associated with severe post-operative pain. Objectives: To describe studies addressing the use of opioids for control of pain after ocular surgery with an emphasis on refractive surgery. Study design: This is a narrative review of relevant articles on the physiology of corneal pain, and the use of opioids for its treatment after surgery. Setting and Methods: A PubMed search was conducted for studies published from January 1985 to May 2015 on the physiopathology of corneal pain, and opioid treatment of postrefractive surgical pain. Reviews, meta-analyses, and randomized clinical trials were included. Inclusion criteria focused on photorefractive keratectomy (PRK) and laser in situ keratomileusis (LASIK). Results: One-hundred and nine articles were found through the search strategies. A total of seventy-five articles were included based on the inclusion criteria. Discussion: Pain after ocular surgery is likely to be a multifactorial phenomenon. A combination of topical and systemic analgesics is used to treat post-operative pain after refractive surgery. Pain may be severe during the first 72 to 96 h, depending on the surgical procedure. No studies were found directly analyzing the benefits of opioids after PRK, although they are routinely prescribed in some centers. Limitations: This review did not include studies indexed in databases other than PubMed. 25 Conclusions: Although opioids are used for the short-term treatment of post-operative pain in refractive surgery, their benefits and risks should be properly evaluated in randomized clinical trials before their use can be safely advised.

show abstract

Advanced morphological analysis of siloxane‐hydrogel contact lenses

Ţălu

2021

Microscopy Res & Technique

View full text Add to dashboard Cite

The purpose of this work is to provide a better understanding of three‐dimensional (3‐D) surface texture of siloxane‐hydrogel contact lenses (CLs) using atomic force microscopy (AFM) and stereometric analysis. The 3‐D surface texture characterization of unworn/worn siloxane‐hydrogel CLs made of Filcon V (I FDA group) was performed with stereometric analysis. The atomic force microscopy (AFM) measurements of surface roughness and micromorphology of CLs were made using a Nanoscope V MultiMode (Bruker) in intermittent‐contact mode, in air, on square areas of 5 × 5 μm. Stereometric study of 3‐D surface texture was made according with ISO 25178‐2:2012 for CLrins (taken from the blister and rinsed with deionized water); CLss (preserved for 12 hr in saline solution and rinsed with deionized water); CLworn‐smooth (worn for 8 hr and presenting the smooth type morphology), and CLworn‐sharp (worn for 8 hr and presenting the sharp‐type morphology). The 3‐D surface texture of siloxane‐hydrogel CLs was found to have specific morphological characteristics. Statistical parameters revealed local geometrical and morphological spatial structures at nanometer scale attributed to the specific interactions at the CLs surface. Before wear, the surface micromorphology of Filcon V CLs is regular with uniformly distributed microasperities and relatively small heights (Sq = 0.6 nm). After 12 hr in saline, it is found that the micromorphology changes relatively easily, but retaining the main morphological characteristics (Sq = 1.2 nm). After 8 hr of wear, there are two typical micromorphologies: smooth type, characterized by gutter structures and isolated microasperities (Sq = 2.5 nm), while the sharp type has an appearance with compactly arranged microasperities of hill type flanked by compactly arranged microregions of valley type (Sq = 2.2 nm). Surface statistical parameters allow manufacturers in developing the next generation of CLs with improved surface texture while improving biocompatibility and minimizing the impact of the material on corneal physiology. Furthermore, the micro‐elastohydrodynamic lubrication due to surface texture at a nanometer scale between the back surface of the CL with the corneal surface and the front surface of the CL with the under‐surface of the eyelid can be deeper and more nuanced to understand in light of modern tribological theories.

show abstract

The Effect of Silicone Hydrogel Bandage Soft Contact Lens Base Curvature on Comfort and Outcomes After Photorefractive Keratectomy

Abstract: Individuals treated with the Allegretto laser or individuals with more prolate corneas should likely be fit with an 8.4-mm BC Acuvue Oasys BSCL while individuals with more oblate corneas should likely be fit with an 8.8-mm BC lens to minimize postoperative pain and premature BSCL loss.

Cited by 16 publications

References 16 publications

Clinical Observation of Silicon Hydrogel Contact Lens Fitted Immediately after Small Incision Lenticule Extraction (SMILE)

Clinical Observation of Silicon Hydrogel Contact Lens Fitted Immediately after Small Incision Lenticule Extraction (SMILE)

Dor no pós-operatório da ceratectomia fotorrefrativa (PRK) com fosfato de codeína 30 mg/ paracetamol 500 mg: ensaio clínico aleatório

Advanced morphological analysis of siloxane‐hydrogel contact lenses

Contact Info

Product

Resources

About