Reaction profile

The FDA adverse-event record for transient blindness

60 FDA reports name transient blindness, a lower-volume reaction in the CVM extract (VeDDRA 1850). Plate stamps and neighbourhood peers follow.

#1656 of 2,481
by report volume (all reactions)
60
reports citing this reaction
6.7%
death-coded share
Dog
most-affected species

Release-over-release change

What changed in the latest FDA data snapshot

PlainBreed reconstructed the prior snapshot from dated openFDA partitions through 2025 Q4, then compared it with the 2026-07-27 openFDA export. Transient blindness has 60 reports now versus 60 in that prior snapshot: 0 the same number of (0.0%).

Report change
+0
Death-coded reports
+0
Death-coded share
−0.0 pts

This compares reported-event counts in two source snapshots. It does not establish a change in real-world risk, product safety, or disease incidence.

Subscribe to Transient blindness changes

FDA AER · VeDDRA plate

Code 1850 VOL-LOW

VOL-LOW · DEATH-PAR · MID-PACK · PHOTO-FINISH · SPECIES-DOG · DRUG-LEAD · DESK-WIDE · BOOK-FULL

  • VOL-LOW 60 reports
  • DEATH-PAR 6.7%
  • MID-PACK #1656/2481
  • PHOTO-FINISH Foam in the trachea
  • SPECIES-DOG Dog · 39
  • DRUG-LEAD Milbemycin Oxime… · 10
  • DESK-WIDE 20 breeds
  • BOOK-FULL 8/8 fields

Nearest volume peer: Foam in the trachea (±0 reports)

Instrument codes from this reaction’s FDA CVM adverse-event extract: volume band, death-coded share, corpus rank, photo-finish peer, lead species, lead drug, breed desk, and book completeness. Not a clinical diagnosis.

Lower-volume neighbourhood around Transient blindness

Lower-third volume poles plus nearest peers, not a full reaction corpus board reprint.

Vomiting · highest174348Foam in the trachea · near60Heavy sweating · near60Salivary gland disord… · near60Skin thinning · near60Transient blindness · this r…60Urinary tract neoplas… · low…10
FDA AER report volume · neighbourhood around Transient blindness

Transient blindness: low death-coded share in the FDA AER plate

Signature read: 4 death-coded reports is a thin tail count for Transient blindness in the CVM extract. Report volume is lower-third scale: 60 named reports in the openFDA extract. Death-coded share is lower-third: 4 of 60 reports (6.7% of named reports). Nearest volume peer: Foam in the trachea (±0 reports). Lead species Dog (39). Lead co-reported drug Milbemycin Oxime + Spinosad (10).

Read these counts as reporting volume, not risk: per our methodology, Lead co-reported drug Milbemycin Oxime + Spinosad appears in filings alongside this reaction; that is association, not causation. Browse the full reactions index or the about page for how PlainBreed frames FDA CVM extracts.

Species Most Affected

Dog 39
Cat 16
Cattle 2
Cockatiel 1
Fox 1
Horse 1

Breeds Most Affected

Domestic Shorthair 10
Chihuahua 5
Unknown 4
Retriever - Labrador 3
Pekingese 3
Terrier - Yorkshire 2
Shih Tzu 2
Siamese 2
Collie - Border 2
Shepherd Dog - Australian 2

Associated Drugs

Milbemycin Oxime + Spinosad 10
Ivermectin 8
Spinosad 4
Imidacloprid + Moxidectin 4
Butorphanol 4
Trilostane 3
Fluralaner Chew Tablets 3
Buprenorphine 3
Ketamine 3
Isoflurane 3
Prednisone 2
Tiletamine Hcl; Zolazapam Hcl 2
Oclacitinib 2
Afoxolaner 2
Alfaxalone 2
Maropitant Citrate 2
Moxidectin 2
Lotilaner 2
Fluralaner 13.64% 12-Week Chew 2
Dexmedetomidine 2

Nationwide reactions with similar profiles

Two openFDA-derived peer sets for Transient blindness, both floored at ≥50 reports so the neighborhoods stay in the advertised mass (the volume chart above is the unfloored photo-finish strip).

Similar report volume

Nearest other reactions by FDA report count (60 here).

Similar death-coded share

Nearest other reactions by death-coded share (6.7% here), distinct from the volume row.

What to do with this reaction

A report does not prove a drug caused the reaction; consult a veterinarian before acting on this data.

Source: FDA Center for Veterinary Medicine openFDA Animal & Veterinary Adverse Events (CVM AER) · 2025

openFDA Animal & Veterinary Adverse Events (FDA CVM) for Transient blindness (#1656 of 2,481 by report volume); death-coded 6.7%. PlainBreed reaction plate · death-coded report count stamp 4 · vintage 2025.

Informational only. FDA adverse-event reports are voluntary and do not prove causation; consult a veterinarian before acting on them. Verify with FDA CVM →