Skip to content

Use of a new laser technique (SMILE - Small Incision lenticular extraction) to remove glasses for both near and distance vision

Assessment of efficacy, patient satisfaction & stereopsis in patients opting for Small Incision Lenticule Extraction (SMILE) monovision

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
CTRI
Registry ID
CTRI/2019/07/020437
Enrollment
40
Registered
2019-07-30
Start date
Unknown
Completion date
Unknown
Last updated
2021-11-24

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Health Condition 1: H521- Myopia

Interventions

Intervention1: ReLex SMILE with ZEISS VisuMax: To perform SMILE monovision in eyes of patients having myopia along with presbyopia, desiring a spectacle free lifestyle. Control Intervention1: NA: NA

Sponsors

Carl ZEISS India
Lead Sponsor

Eligibility

Inclusion criteria

Inclusion criteria: 1. Age >=40 yearsâ?¨ 2. Myopia 1.0D to 10 D â?¨ 3. Refractive cylinder -4.00 DCL or less. â?¨ 4. Best spectacle corrected visual acuity (BSCVA) of 6/9 or better in each eye â?¨ 5. Stable refraction with less than -0.50D spherical or cylindrical error change in last one year.â?¨ 6. Contact lens wearers must have removed contact lenses at least two (2) weeks before the baseline measurement. 7. No evidence of irregular astigmatism on corneal topography. â?¨ 8. Available to attend post-operative examinations for a 12-month period. 9. Near Add > 0DSâ?¨

Exclusion criteria

Exclusion criteria: 1. Progressive or unstable myopia and/or astigmatism.â?¨ 2. Clinical or corneal topographic evidence of keratoconus.â?¨ 3. A residual stromal bed thickness that is less than 275 microns from the corneal endothelium. 4. Residual, recurrent or active ocular disease such as uveitis, severe dry eyes, severe allergic eye disease, glaucoma, visually significant cataract andâ?¨retinal disease.â?¨ 5. Previous corneal surgery or trauma.â?¨ 6. Taking systemic medications likely to affect wound healing, such as corticosteroids and antimetabolites.â?¨ 7. Systemically immunocompromised.â?¨ 8. Systemic disease likely to affect wound healing, such as diabetes, connective tissue disease and severe atopy.â?¨ 9.Pregnant or nursing. 10. Use of Prisms 11. Manifest Squint 12.History of Corrected Strabismus 13.Subnormal stereoacuity ( >60 Seconds of Arc)

Design outcomes

Primary

MeasureTime frame
1. Uncorrected Visual acuity 2. Patient satisfaction in terms of independence from spectacles recorded in the form of a questionnaire. Timepoint: 1. At Day 1, Week 1, Month1,3 and 6 2. At Month 3 and6

Secondary

MeasureTime frame
1. Percentage of eyes with â?¥ 2 lines BCVA loss. 2. Induced manifest refractive astigmatism â?? the percentage of eyes with induced manifest refractive cylinder 2.0 D at the final postoperative visit. 3. Incidence of adverse events â?? The counts and percentages of eyes for each adverse event. Timepoint: 1. At 1 month, 3, 6 months 2. at 1,3 and 6 months 3. At each follow up

Countries

India

Contacts

Public ContactMahipal S Sachdev

Centre For Sight

drmahipal@gmail.com9810046017

Outcome results

None listed

Source: CTRI (via WHO ICTRP) · Data processed: Feb 4, 2026