Effects on objective tear film parameters after femtosecond laser-assisted and conventional cataract surgery

Status

Active, not recruiting

Phases

Phase 4

Study type

Interventional

Source

DRKS

Registry ID

DRKS00021773

Enrollment

Registered

2020-05-25

Start date

2014-03-02

Completion date

Unknown

Last updated

2025-04-07

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

Conditions

H25.1

Interventions

Group 1: Femtosecond assisted cataract surgery Group 2: Conventional cataract surgery

Eligibility

Sex/Gender

All

Age

50 Years to 100 Years

Inclusion criteria

Inclusion criteria: visually significant cataract (NC2 to NC5 regarding LOCS III classification), corrected distance visual acuity decreased by minimum to 0.1 logMAR, dilated pupil width of 6.0 mm or greater, willing to volunteer for the trial

Exclusion criteria

Exclusion criteria: corneal scars, corneal diseases, glaucoma, pseudoexfoliation syndrome, zonular weakness, history of ocular surgery, active or past inflammations, reduced compliance, any usage of eye drops within 1 month prior to surgery except artificial tear drops

Design outcomes

Primary

Measure	Time frame
Change of tear film parameters (TFO, MMP-9, and Schirmer test values) 3 months postoperatively	—

Secondary

Measure	Time frame
Changes in visual acuity (visual acuity test) 3 months postoperatively	—

Countries

Germany

Contacts

Public ContactMarc Schargus

Knappschaftskrankenhaus Bochum-Langendreer

marc.schargus@gmx.de+49234 299 3105

Outcome results

None listed

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