myopia, myopic astigmatism and presbyopia
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1) 50 years old and over 2) myopia and myopic astigmatism with corrected visual acuity of 1.0 and over 3) The astigmatism (the column frequency) is less than 1/2 of the spherical surface frequency 4) The person that the observation of both eyes is possible 5) The person possible to come for examination on the specified day 6) The person who I understand instructions and the explanation of the doctor, and can acquire an agreement
Exclusion criteria
Exclusion criteria: 1) Subjects who cannot wear a contact lens 2) Corneal endothelial cell density < 2000/ mm2 3)Corneal diameter < 10 mm 4) Subjects who have ocular diseases affecting visual function except for refractive error and presbyopia 5) A pregnant woman, a woman nursing or woman with the plan of the pregnancy 6) The patient (AIDS, autoimmune disease) with the immune disease or diabetic 7) The person who cannot obey the instructions of the ophthalmology specialist 8) Extremely nervous person 9) Person not able to bear plural inspection 10) In addition, the person who judged that an ophthalmology specialist was unsuitable for wearing this contact lens
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Distance and near visual acuities with or without the pinhole contact lens. | — |
Countries
Japan
Contacts
Keio University School of Medicine Department of Ophthalmology