← Eichor
Study identifier: NCT06781970 Synced from ClinicalTrials.gov · July 28, 2026
● Recruiting

Effect of Vitamin C Supplementation in Corneal Endothelial Damage in Phacoemulsification of Patients with Hard Cataracts

Condition: Endothelial Cell Loss, Corneal · Cataract and Intraocular Lens (IOL) Surgery  ·  Sponsor: Indonesia University

PhaseNA
Planned participants120
Who can joinAll sexes, 60 Years to no upper limit
Healthy volunteersNo

About this study

The goal of this clinical trial is to analyze the protective effects of oral ascorbic acid on the corneal endothelial layer undergoing oxidative stress due to phacoemulsification in patients with hard cataracts. The main questions it aims to answer are: 1. Will oral vitamin C administration provide better protection to the corneal endothelium in hard cataract phacoemulsification by comparing preoperative and postoperative administration, preoperative only, and no administration? 2. How does oxidative stress (MDA levels) in the aqueous humour increase after oral vitamin C administration compared to no administration? 3. Will there any changes in MDA levels in the aqueous humour and blood after oral vitamin C administration compared to no administration? 4. Does MDA levels in the aqueous humour correlate with MDA levels in the blood? Researchers will compare vitamin C to a placebo to see if vitamin C as an antioxidant works in preventing corneal endothelial damage due to phacoemulsification. Participants will: * Take 500 mg of oral vitamin C or placebo three times a day for seven days prior to phacoemulsification * Undergo phacoemulsification * Take vitamin C or placebo three times a day for 28 days after phacoemulsification * Visit the ophthalmology clinic 1, 7, 28, and 42 days post-operative for checkups * Keep a logbook to record the drug they take and to write symptoms of possible side effect of the drug

This description comes directly from the study's public registry record.

Talk to the study team

Syska Widyawati, Master of Medical Education  ·  +62 818473841  ·  syska.widyawati@gmail.com

Rafida Kamila, Medical Doctor  ·  +62 81217169169  ·  rafida.sofi1997@gmail.com

Always discuss trial participation with your own doctor first.

Locations (2)

Pharmacology Laboratory of the University of IndonesiaJakarta, DKI Jakarta, IndonesiaNot Yet Recruiting
RSUD SayangCianjur, West Java, IndonesiaRecruiting

Follow this study

Get one email when the public record changes — results posted, or the study's status changes. Nothing else, ever.

We email about this public record only. Unsubscribe anytime with one click. Never medical advice.

Is this your study? This page was generated automatically from the public registry record. Sponsors can claim it — free — to add branding and verified contact routing. Claim this page →

This page is independently generated by Eichor from the public ClinicalTrials.gov record and re-synced daily. It is not the sponsor's official website unless claimed. Nothing here is medical advice; eligibility is always determined by the study team — talk to your own doctor first.

Source record: clinicaltrials.gov/study/NCT06781970