Corneal transplantation.
Conditions
Interventions
Intervention group:The intervention group consists of patients who, after clinical examinations and confirmation of eligibility, receive scleral contact lenses. All patients are enrolled consecutively
Sponsors
Bagheiat-allah University of Medical Sciences
Eligibility
Sex/Gender
All
Inclusion criteria
Inclusion criteria: History if corneal transplantation ,including full graft transplantation or lamellar transplantation Low visual acuity with glasses or rigid gas permeable lenses Written consent form Ability to participate in study and follow up
Exclusion criteria
Exclusion criteria: Active ocular surface disease and interocular disease such as infection ,uveitis etc Uncontrolled systemic disease Sever corneal scar that makes fitting corneal lenses impossible Unwillingness to participate and follow up
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Primary Outcome Description:Visual quality is defined as the primary outcome variable in this study. It is assessed through three main parameters: visual acuity, contrast sensitivity, and patient satisfaction with their visual performance. Visual acuity is measured using a standard eye chart, while contrast sensitivity is evaluated by the Melbourne Edge Test (MET). Patient satisfaction is self-reported using a numerical scale ranging from 0 to 10. The combination of these three measures provides a comprehensive and multidimensional assessment of visual quality following the intervention. Timepoint: The timing of primary outcome (visual quality) measurement in this study includes two time points: 1. Before scleral lens fitting (baseline), when visual acuity, contrast sensitivity, and patient satisfaction scores are assessed. 2. After scleral lens use, at a follow-up period of 1 to 2 weeks post lens delivery, when the same parameters are re-evaluated and compared to baseline. Method of measurement: Method of measuring the primary outcome variable (visual quality):Visual acuity is measured using a standard eye chart with a decimal scale.Contrast sensitivity is assessed using the Melbourne Edge Test (MET), with results recorded in decibels (dB).Patient satisfaction regarding visual quality is self-reported using a numerical scale ranging from 0 to 10, where 0 indicates no satisfaction and 10 indicates complete satisfaction. | — |
Countries
Iran (Islamic Republic of)
Contacts
Public ContactFateme Riazi
Bagheiat-allah University of Medical Sciences
Outcome results
None listed