Contact lens comfort linked to vision quality, lens type
Click Here to Manage Email Alerts
The comfort scores calculated for three types of toric contact lenses correlated with subjective vision quality and lens type, according to study results published in Contact Lens and Anterior Eye.
“This work set out to investigate if there was an association between subjective comfort and both subjective and measured vision during the use of contemporary daily disposable soft toric contact lenses,” Carole Maldonado-Codina, BSc(Hons), MSc, PhD, MCOptom, FAAO, FBCLA, and colleagues wrote.
Maldonado-Codina and colleagues conducted a prospective, crossover, randomized, single-masked study of 36 adults (mean age, 35.6 years) who habitually wore soft contact lenses. Participants wore one of three toric lenses in the study for 8 or more hours per day on at least 5 days for a week. Each participant sampled all three lenses one at a time in 3 separate weeks, but the order of lenses was random.
Researchers wrote that they selected the three lenses used in the study – Clariti 1 day toric (somofilcon A, Cooper Vision), 1-Day Acuvue Moist for Astigmatism (etafilcon A, Johnson & Johnson Vision) and Dailies AquaComfort Plus Toric (nelfilcon A, Alcon) – because they are “representative examples of contemporary, commonly prescribed hydrogel and silicone hydrogel toric lenses.” Outcomes of interest included age, sex, visit, phase of crossover, lens type, lens rotation, lens rotational stability, visual acuity, cylinder power and subjective vision quality.
Subjective comfort scores correlated with subjective vision quality (F = 127; P < .0001), including greater subjective comfort scores, which correlated with greater subjective vision scores (r = 0.66; P < .0001). Subjective comfort scores also correlated with phase of crossover (F = 7.2; P = .001) and lens type (F = 4.9; P = .009).
“This work suggests that symptoms of ocular discomfort may be more intense if there is also perceived visual compromise in daily disposable soft toric lenses,” the researchers wrote.
Collapse
Read more about
Click Here to Manage Email Alerts