Toric marker in cataract surgery for astigmatic correction corneal axis axis marking method astigmatic corneal marker axis misalignment
Conditions
Interventions
The photograph was taken via the CUTM-
1 application on mobile phone (iPhone5S,
USA) which was attached on right slit-
lamp eyepiece ,
volunteer was in upright position with the fellow eye fixed on distant target. The assigned axis was marked and saved on iPhone.,Slit-
lamp photography (SL-
D7 with DC-
3 integrated digital camera,
Topcon Corporation,
Japan) was taken in upright position with the fellow eye fixed on distant target. All pictures were captured under same setting,
which were diffuse illumination,
45 degree deviation of illuminating arm from the midline to temporal side and 16x optical magnification. A standard slit-
lamp marking technique was performed using a sterile ink (Securline®
Surgical Skin Marker,
Aspen Medical Europe Ltd.,
Redditch,
UK) to mark 0-
180 degree reference point at the limbus in upright position and mark assigned axis using Mendez ring in supine position under surgical microscope. Then,
Sponsors
Ratchadaphiseksompot fund
Eligibility
Sex/Gender
All
Age
20 Years to 120 Years
Inclusion criteria
Inclusion criteria: Healthy adult, age more than 20 years old, without ocular disease
Exclusion criteria
Exclusion criteria: pregnancy, breastfeeding, allergy to topical anesthetic drug or sterile ink, and any risks of infection (e.g. immunocompromised host)
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Horizontal deviation None Degree,Decentration None Millimeter,Axis deviation None Degree,Total axis deviation None Degree | — |
Secondary
| Measure | Time frame |
|---|---|
| None None None | — |
Contacts
Public ContactUsanee Reinprayoon
Department of ophthalmology, Faculty of Medicine, Chulalongkorn university
Outcome results
None listed