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    Protecting your horse's eyes—what you need to know, our recommendations

    New products from equidiva for 2023!

    January 12, 2023

    Lots of exciting surprises in store for 2023 with the launch of two new eye protection products forShetland ponies, ponies, horses, and draft horses: the modified Premium field mask and a truly innovative new pair of work goggles.
    See the entire article

    How can uveitis be recognized in horses?

    December 1, 2022

    Uveitis is an eye condition that is becoming increasingly common in horses. It is characterized by internal inflammation of the eye that is particularly painful and, in many cases, recurrent.
    See the entire article

    How can I prevent the mask from hurting my horse?

    November 28, 2022

    Does your horse have to wear a mask for long periods of time and you're worried (rightly so) that it might hurt him? Here are our tips for minimizing rubbing and irritation.
    See the entire article

    UV rays and horses' eyes

    June 7, 2022

    Rays that are not filtered by the atmosphere (UVA and UVB) can pose risks to the skin (horses with white markings, sunburn), but also to the eyes! Fortunately, there are now solutions available to protect our horses.
    See the entire article

    The legal consequences of ophthalmic diseases in horses

    May 4, 2022

    Unfortunately, many horses suffer from eye diseases. These can vary (uveitis, cataracts, conjunctivitis, etc.) and can have serious consequences for your horse's sporting prospects. Find out about the legal options available to you when you buy a horse with uveitis or another eye condition.

    See the entire article

    eVysor, protective mask for riding: which visor, which tint, which protections?

    April 20, 2022

    eVysor glasses are designed for working horses. They are particularly recommended for protecting the eyes of horses with ophthalmic or photosensitive conditions. All lenses are UV-treated, but there are differences between the visors available.
    See the entire article

    Corneal ulcers in horses

    April 14, 2022

    Corneal ulcers account for the majority of ophthalmological consultations in horses. Usually caused by trauma, they generally have a good prognosis but require appropriate treatment and close monitoring.
    See the entire article

    Uveitis in horses: causes, symptoms, and treatments

    February 20, 2022

    Uveitis is the leading cause of blindness in horses. It is a very common eye condition in horses, but one that is often overlooked by owners. Its recurrent nature can make it a real nightmare.
    See the entire article

    Horse vision: field of vision and visual acuity—what do we know?

    January 10, 2022

    To better understand how horses see, we will first look at the unique characteristics of their eyes, their field of vision, their perception of colors, and more. This will allow us to measure the impact of eye diseases on their vision.
    See the entire article

    10 tips for protecting your horse's eyes

    November 11, 2021

    Ophthalmological problems are more common than you might think in horses. Here are 10 practical tips to protect their eyes in all seasons.
    See the entire article


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    What size should I choose for my Equidiva mask/hat?

    All measurements are approximate and are provided for informational purposes only.

    Size guide - Premium or Helios mask

    Using a tape measure (or a piece of string that you will measure afterwards), measure around your horse's head as shown in the photo:


    Mask size Head circumference
    XS - Shetland 84 cm
    S - Pony 90 cm
    M - Cob 94 cm
    L - Full 100 cm
    XL - XFull 110 cm
    If your horse's head measurement falls between two sizes, we recommend choosing the larger of the two.



    Size guide - Equivizor masks (Lightweight, Arso, Convalescence models)

    For these masks, the main measurement is the width of your horse's forehead. To do this, you need to add together three measurements:

    1. Start at the outer corner of one eye and measure upwards at a slight angle to the middle of the forehead (measurement A).
    2. continue along the front of your horse(measurement B),
    3. Finish the measurement by directing the line slightly downward to the outer corner of the other eye (measurement C). This way, you will measure the widest part of your horse's forehead.

    Add these 3 measurements (A+B+C) to obtain the size of your horse's forehead.

    IMPORTANT: Do not measure directly from one eye to the other, as this will likely result in an inaccurate measurement.

    equivizor mask measurements

    Mask size Forehead size
    XS - Shetland 7.5–8.7 inches
    S - Pony 8.7–11.4 inches
    M - Cob 11.5–13.5 inches
    L - Full 13-14 inches
    XL - XFull 15-17 inches


    Size guide - Rambo mask

    Take these 3 steps:


    Size A B C
    XS (large Shetland) 60 cm 84 cm 20 cm
    S (pony) 70 cm 96 cm 9.5 inches
    M (cob) 70 cm 96 cm 9.25 inches
    L (full) 75 cm 105 cm 27 cm

    If your horse is between sizes, we recommend choosing the smaller size.


    Size guide - Equivet mask

    Measure the distance between the center of the horse's two eyes:


    Mask size Distance between the eyes
    S - Pony 18 cm
    M - Cob 21 cm
    L - Full 9.5 inches
    XL - XFull 26 cm


    Size guide - eVysor glasses

    The eVysor mask is available in one size. It is suitable forcob orfull horses. It can also sometimes fit large ponies (D ponies).
    evysor measurement



    Made a mistake? Exchanges are always possible, and we will process them as quickly as possible provided that you return the item to us intact within 14 days.
    > See the return policy