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VISUMAX 800 FOR LENTICUE CENTRATION ON THE VISUAL AXIS

VALIDATION OF CENTRALIGN SOFTWARE ON THE VISUMAX 800 FOR LENTICUE CENTRATION ON THE VISUAL AXIS - nil

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
CTRI
Registry ID
CTRI/2025/07/091455
Enrollment
150
Registered
2025-07-22
Start date
Unknown
Completion date
Unknown
Last updated
2025-08-18

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: Nil: Nil

Sponsors

Nethradhama superspeciality eye hospital
Lead Sponsor

Eligibility

Inclusion criteria

Inclusion criteria: Myopia between -3.00DS and -8.00DS, astigmatism more than or equal to -0.75DC undergoing SMILE with Visumax 800. Stable refraction for more than 1 year Preoperative corrected distance visual acuity of 20/25 or better. Regular corneal topography and corneal astigmatism. Healthy ocular surface with stable tear film. Discontinuation of soft contact lenses for 1 week, and rigid contact lenses for 3 weeks prior to surgery.

Exclusion criteria

Exclusion criteria: Thin corneas Steep cornea Keratoconus suspects or frank keratoconus Mixed astigmatism Moderate to severe dry eye Socket/ globe/ lid anomalies Severe meibomian gland disease Severe atopy Contact lens overuse Patients on any systemic medications like iso-retinoic acid, hormonal preparation, OCPs, antidepressants Previous cornea based refractive surgeries.

Design outcomes

Primary

MeasureTime frame
To validate the lenticule centration accuracy on the visual axis in myopic eyes treated with small incision lenticule extraction (SMILE) using Visumax 800 femtosecond laser (Carl Zeiss Meditec AG).Timepoint: on day 1, day 15 and 3 months

Secondary

MeasureTime frame
nilTimepoint: nil

Countries

India

Contacts

Public ContactDrNishika Jain

Nethradhama superspeciality eye hospital

dr.supriyasriganesh@nethradhama.org8951027740

Outcome results

None listed

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