Original articleConjunctivochalasis and Contact Lenses
Section snippets
Subjects
Consecutive CL wearers attending our outpatient clinic between January 1 and June 30, 2007 were enrolled in the study. Almost all of the patients lived in Tokyo or Kanagawa in Japan. Patients with a history of ocular surgery or punctal occlusion, and those with infectious conjunctivitis, proptosis, or eyelid abnormalities such as entropion, ectropion, and trichiasis were excluded. Moreover, patients using both HCL and SCL were excluded so that conjunctivochalasis could be compared between HCL
Results
The prevalence of conjunctivochalasis increased dramatically with age in both CL wearers and nonwearers, as shown in Figure 1. This figure also shows the extent of conjunctivochalasis, demonstrating that it became more extensive with age and the extent was greater in CL wearers than in nonwearers (11 to 20 years; 46.8% vs 17.0%, P < .00001; 21 to 30 years; 66.3% vs 53.1%, P = .01037; 31 to 40 years; 84.1% vs 70.4%, P = .00566; 41 to 50 years; 90.8% vs 88.1%, P = .62463; 51 to 60 years; 100.0%
Discussion
This prospective study showed that the prevalence and grade of conjunctivochalasis was higher in the CL wearers than in nonwearers and the grade in HCL wearers was higher than that in SCL wearers. Conjunctivochalasis is well known to increase with age. Although various authors have reported on dry eye–induced conjunctivochalasis and techniques of conjunctival surgery, no attempt has been made to assess CL-induced conjunctivochalasis. Here we present the first data on the grade of CL-induced
Tatsuya Mimura, MD, is currently at the Department of Ophthalmology, University of Tokyo Graduate School of Medicine, Tokyo, Japan. He received his MD degree from Yamanashi Medical School in 1997. Dr Mimura's primary research interest is ocular regeneration, and his clinical sub-specialties include medical and surgical treatment of corneal diseases and diabetic retinopathy.
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Tatsuya Mimura, MD, is currently at the Department of Ophthalmology, University of Tokyo Graduate School of Medicine, Tokyo, Japan. He received his MD degree from Yamanashi Medical School in 1997. Dr Mimura's primary research interest is ocular regeneration, and his clinical sub-specialties include medical and surgical treatment of corneal diseases and diabetic retinopathy.