Articles tagged with Contact Lenses
A new bio-sensing contact lens technology, developed by Oregon State University researchers, could enable continuous monitoring of blood glucose levels and other vital signs. The lens uses a transparent biosensor containing a semiconductor material to detect glucose concentrations in tears.
Researchers found that patients with early mucin deposits had a higher rate of corneal infiltrates, but those with repeat deposits were less likely to experience problems. Mucin deposits may act as a protective barrier between the lens and ocular surface.
A study published in Optometry and Vision Science found that protamine solutions perform at least as well as current disinfectant solutions in killing microbes that can cause contact lens-related infections. Protamine's broad spectrum of antimicrobial activity makes it a potential alternative for multipurpose disinfection solutions.
Researchers developed an innovative procedure to transplant the Bowman layer, stabilizing 90% of eyes and improving corrected vision to 20/200. The technique may enable patients to wear extended contact lenses and is safer than traditional full corneal transplantation.
Researchers at University of Washington have introduced a new way to communicate that allows devices like brain implants, contact lenses, and credit cards to talk to everyday devices. The new technique, called interscatter communication, works by converting Bluetooth signals into Wi-Fi transmissions over the air.
A special issue of Optometry and Vision Science presents research on contact lens discomfort, a common problem affecting millions worldwide. New findings suggest that corneal pressure sensitivity and inflammatory mediators may contribute to discomfort, but the relationship is complex.
New materials and technologies enable innovative applications for contact lenses, including slowing nearsightedness progression, drug delivery and disease monitoring. Researchers propose solutions to clinical challenges in these emerging areas, going beyond traditional vision correction.
Researchers at Stanford University developed a machine to mimic the surface of the eye, allowing for systematic testing of tear film behavior on contact lens surfaces. This innovation could lead to more comfortable contact lenses that protect users from painful dry eye symptoms.
A study found that contact lenses alter the natural microbial community of the eyes, making it more skin-like. This shift in bacterial composition increases the risk of eye infections such as giant papillary conjunctivitis and keratitis.
Researchers designed a contact lens that adjusts its focus using a bioinspired retina structure, inspired by the elephant nose fish's ability to spot predators. The lens is powered by a small solar cell and can capture images under low-light conditions, offering a potential solution for people with presbyopia.
Scientists at RMIT University and the University of Adelaide developed a stretchable device that can filter specific colors while remaining transparent. This technology has the potential to make smart contact lenses that can filter harmful optical radiation without interfering with vision.
Researchers unveil prototypes of telescopic contact lenses that magnify objects up to 2.8 times, addressing low vision and AMD concerns. Complementary smart glasses recognize winks and blinks, allowing seamless switching between normal and magnified vision.
A new study found that contact lens discomfort is associated with degradation of the lipid layer in the tear film. Applying a liposomal eyelid spray increased stability of the tear film and improved dry eye symptoms, suggesting potential benefits for patients with contact lens discomfort.
The University of Houston is participating in a $7.5 million NIH clinical trial to slow the progression of nearsightedness in children using commercially available soft bifocal contact lenses. The study aims to determine whether these lenses can slow eye growth and subsequent myopia.
A new study reports that antimicrobial peptide-coated contact lenses are safe and effective in reducing the risk of contact lens-related infections. The study found no signs of toxic effects or adverse reactions, making melimine-coated lenses a promising alternative to traditional antibiotics.
A recent NIH study found that contact lenses are safer and just as effective as permanent lenses for infants under seven months old after cataract surgery. The study showed more post-surgical complications and repeat surgeries in the IOL group compared to the contact lens group.
A recent study published in Optometry and Vision Science highlights the alarming increase in myopia incidence, primarily influenced by environmental factors. Multifocal contact lenses have shown promise in reducing myopia progression in children, with results persisting through at least two years.
Researchers have created a slim, telescopic contact lens that can switch between normal and magnified vision, offering AMD patients a relatively unobtrusive way to enhance their vision. The system uses a modified pair of liquid crystal eyeglasses to selectively block either the magnifying portion or its unmagnified center.
A study published in Optometry and Vision Science found that changing lens type or lens care product can bring relief to about half of patients experiencing discomfort with contact lenses. The study ranked different combinations, with one showing significant improvement in ocular comfort and symptoms.
A new study found that wearing OK contact lenses every night can restore age-related loss of near vision, allowing patients to read and perform up-close tasks without bifocals or reading glasses. The technique is safe and reversible, with the cornea returning to its previous shape after stopping lens wear.
A study published in Optometry and Vision Science found that replacing extended-wear/continuous-wear contact lenses in the morning reduces overall adverse event rates by about four percent compared to nightly replacement. Morning lens replacement also significantly lowers mechanical adverse events, such as corneal scratches.
Researchers have developed specialty contact lenses that can induce changes in eye growth and refractive state to reshape the eye in the desired way. These lenses successfully reduced the elongation of the eye causing myopia progression, providing a potential breakthrough in treating nearsightedness.
Researchers developed contact lenses that release anesthetics over time to ease pain after PRK surgery. The vitamin E-loaded lenses extended the release of three commonly used anesthetics from under two hours to up to a few days.
A study by Marie Brenner and colleagues found that contact lenses improve retinal nerve fiber layer measurements in patients with higher refractive errors but have a negative impact on those with lower refractive errors. The researchers aim to improve glaucoma diagnosis and management through their findings.
Researchers have discovered a new method to fight bacterial infections associated with contact lenses, breaking apart molecular scaffolding that encases bacteria and reducing infection rates by 79.2%. The treatment has promising early results for treating microbial keratitis, cystic fibrosis, and severe burns.
A new study finds that older adults wearing multifocal contact lenses may have slower driving speeds at night and reduced ability to recognize road hazards compared to those using progressive addition glasses. However, they can still see road signs at a shorter distance.
A new study found that UV-blocking contact lenses can reduce or eliminate the effects of the sun's harmful UV radiation. The lenses, such as Senofilcon A, provide an additional layer of protection against UV-induced damage to the cornea and lens, including cataracts.
Dr. H. Dwight Cavanagh, a renowned UT Southwestern ophthalmologist, has been awarded the Cornea Society's highest honor, the Castroviejo Medal. His groundbreaking research on corneal biology and transplantation has improved treatments for eye diseases.
Researchers at the University of Houston's College of Optometry have developed custom contact lenses to address the needs of patients with eye diseases that affect focus. The lenses correct higher-order aberrations, providing improved vision and quality of life. Early-stage patients have shown dramatic results, and the team aims to mak...
Researchers have discovered a series of distinct concentric zones in gecko eyes that enable exceptional night vision, leading to potential advancements in camera technology and multifocal contact lenses. The study, published in the Journal of Vision, also introduces a new method for gathering optical data from live animals without harm.
A recent study found that children as young as 8 years old who wear contact lenses have improved perceptions of their physical appearance, athletic competitiveness, and social acceptance compared to those wearing glasses. The researchers suggest that nearsighted children should be given the option to select contact lenses over glasses.
A high percentage of contact lens cases in Tenerife are contaminated with pathogenic Acanthamoeba that cannot be killed by normal contact lens solution. The infection is very painful and can cause blindness. Researchers have found that commercial contact lens solutions do not protect against amoebic keratitis.
Researchers at UC Davis have created smart contact lenses that can measure eye pressure and dispense medication. These contact lenses, made with a new material, could help doctors better understand glaucoma and improve patient treatment.
Researchers at McMaster University have developed self-moisturizing contact lenses using hyaluronic acid, a natural polymer found in the human body. This innovative approach reduces eye dryness and increases wearer comfort, offering a greener alternative to existing synthetic materials.
A recent study found that individuals who purchase contact lenses online are less likely to follow FDA-recommended eye care practices. Online purchasers are also more likely to experience discomfort and vision problems due to incorrect prescriptions.
Researchers identified 50 eyes with microbial keratitis on contact lenses, finding that 70% of lenses had organisms growing on them. Serratia marcescens was the most common organism found in both corneal scrapings and contact lenses.
Researchers at the University of Rochester developed custom-designed soft contact lenses to correct visual acuity in individuals with keratoconic eyes. The lenses feature irregular front surface profiles that address specific aberrations of the cornea and crystalline lens, resulting in improved vision for subjects.
A new study by Ohio State University researchers found that children aged 8-12 can handle and wear contact lenses with ease, similar to teenagers. The study, which involved 169 participants, revealed that younger children were more satisfied with wearing contact lenses than glasses, citing improved vision and participation in activities.
A study by OHSU eye doctor William Mathers found a higher risk of suffering vision loss from contact lenses compared to laser vision correction surgery. This contradicts traditional assumptions that contact lenses are safer than laser surgery, highlighting the importance of proper care and cleaning.
A recent study found that 14 million Americans have visual impairment, but most cases can be corrected with glasses or contact lenses. The study emphasizes the importance of routine eye examinations and public awareness campaigns to address this public health issue.
A recent study published in Ophthalmology found that the risk of vision loss due to corneal infections among users of 30-day soft contact lenses is extremely low. The study, which involved 6,245 patients, reported an overall annual rate of evident corneal infection of 18 per 10,000.
A year-long study found that new generation silicone hydrogel lenses significantly reduce the risk of severe keratitis, a type of eye infection. Those wearing traditional hydrogel lenses were five times more likely to develop severe keratitis when sleeping in their lenses.
A three-year study found that rigid gas permeable contact lenses slowed the progression of myopia by nearly 30 percent in nearsighted children. The study, which included over 100 children aged 8-11, showed that RGP lenses altered the shape of the cornea and reduced 'corneal steepening', a condition associated with nearsightedness.
A three-month study found nine out of ten nearsighted children in the age group could handle daily disposable contact lenses without parental supervision. Daily disposable lenses improve compliance and force children to learn to apply and remove their lenses.
A study by the Chinese University of Hong Kong found that orthokeratology contact lenses may cause permanent vision loss in children if not worn properly. The study highlights the risks of corneal ulcers and infection associated with overnight OKL wear, which deprives the corneas of oxygen.
A study reveals six cases of patients experiencing vision-threatening problems after wearing illegal costume contact lenses. The FDA has issued a warning about the dangers associated with these lenses, which can cause permanent eye injuries and potentially lead to blindness.
The American Academy of Ophthalmology reports that unregulated sale of decorative contact lenses poses a grave danger to the public. Six patients experienced vision-threatening problems after wearing lenses purchased from unlicensed vendors, including corneal scarring and bacterial infections.
Nonprescription contact lenses can cause permanent damage, infection and scarring due to ill-fitting design and lack of monitoring by medical professionals. Cosmetic contact lenses sold over-the-counter without a doctor's prescription increase the risk of corneal ulcers and eye infections.
Multifocal lenses offer improved unaided near vision, but also reduce contrast sensitivity. The study found that only 26-47% of patients with multifocal lenses were spectacle-free, compared to 1-11% with monofocal lenses.
Researchers have developed contact lenses that can dispense prescription drugs directly to the eye, reducing the risk of side effects associated with traditional eye drops. The new technology uses nanoparticles to encapsulate drugs in a matrix, allowing for controlled release over an extended period.
A renowned chemist at UC Berkeley has won a national award for his groundbreaking work on soft contact lens design. His research focuses on developing safer, more comfortable, and effective lenses through advanced materials and computational modeling.
A study found that wearing contact lenses instead of glasses increased feelings of self-confidence and 'pulling power'. Volunteers who switched to contact lenses reported a significant increase in abilities, with many more likely to engage in social interactions, including hugging, kissing, and fondling.
Researchers have developed a new antibacterial coating using selenium that can kill bacteria and extend contact lens wear time. The coating, which is only one molecule thick, has shown promising results in rabbits, with no ill effects after two consecutive months of wear.
Researchers found that patients with pre-existing dry eye were more likely to experience severe dry eye after LASIK surgery. The study suggests that proper ocular surface management can help mitigate this risk, but patients with dry eye should be warned about potential persistent symptoms.
A recent study by Ohio State University found that almost one in 13 soft contact lens wearers develop severe corneal abrasions, leading to infections or other problems. The study suggests that optometrists monitor their patients for such abrasions and proper hygiene habits can prevent them.
Researchers at UT Southwestern Medical Center found that hyper-oxygen transmissible contact lenses reduce bacterial binding and promote tear exchange, leading to decreased bacterial growth. The study suggests these new lens materials will be a breakthrough in reducing the risk of eye infections.
A study of 50 patients found that almost twice as many preferred disposable extended-wear lenses due to their convenience. The subjects reported no differences in vision, comfort, or eye health between the two types of lenses.
Researchers found that wearing reverse-geometry gas permeable contact lenses for 7 nights improved the daytime eyesight of 7 out of 8 nearsighted subjects. By the end of a 60-day trial, all subjects could see clearly without contacts or glasses.