There are many issues that can be problematic for a goldfish. Many of these can often involve the eyes. The following eye conditions are caused by multiple things including, bacterial infections, fungal infections, parasites, viruses, and trauma. Depending on the cause, there are different types of medications and bath treatments that can help. Some more serious issues can lead to a loss of the injured eye but do not be overly concerned because a goldfish is hardy and can still live a quality life with limited or even no vision.
Goldfish Eye Problems
Cause: Bacterial infection
Treatment: Amoxicillin, Gentamycin or API Melafix Antibacterial
Cause: Due to a saprolegnia fungus
Treatment: Forma Green, Copper Sulfate, Victoria Green B and Acriflavine
Cause: Could be caused by flukes; a parasite. -or- a bacterial infection.
Learn About: Goldfish flukes
Treatment: Melaleuca or Prazipro, Oxybispropanol, and praziquantel. If it’s not flukes, use Melafix
Cause: Bacterial infection
Treatment: Gentamycin Sulfate, Kanamycin Sulfate, TMP Sulfa or Furan
Cause: Could be a protozoan infestation.
Treatment: Metronidazole, Quinine Sulfat, Nitrofuracin Green
Cause: Can be caused by injury from a fight or accident; -or- from goldfish tuberculosis.
Treatment: injury: Nitrofuracin green or Water Conditioner (w/ Slime Coat Care). Tuberculosis: Kanamycin and Vitamin B-6
Cause: Could be an injury from a fight or accident; or a bacterial infection
Treatment: For bacterial infection: Gentamycin. Injury: Nitrofuracin green or stress coat solution
Cause: Occurs when a fish has a kidney infection
Treatment: For kidney infection: Erythromycin. For an injury: Nitrofuracin green and stress coat solution
Cause: The goldfish might be suffering from abdominal dropsy -or- ‘hole in the side’ disease infection
Treatment: AntiBacteria Therapy Oxolinic Acid and Oxytetracycline and forma-green.
In addition to a quarantine period for any new goldfish before adding it into your tank and routine water changes to keep optimal water parameters, you can try a precautionary treatment that helps keep bacteria, fungus, and parasites from becoming established in your goldfish tank or pond.
Many serious goldfish eye injuries can heal, even if it causes them to go blind. A goldfish with a missing eye can live out its life without any issues. Even if it is completely blind, it can still sense its surroundings by using its lateral lines, sense of hearing, and sense of smell. To feed a blind goldfish, try using sinking pellets so the blind goldfish can feel around on the substrate to find its food. Make it a habit to feed the goldfish in the same location in the tank or pond to maximize the chances of the blind goldfish finding food.