Snakes regularly shed their outer layer of skin, a process known as ecdysis. This natural cycle allows them to grow and helps remove external parasites. During this process, many snake owners observe a distinct cloudiness in their snake’s eyes, prompting questions about their vision. This temporary change is a normal part of the shedding process.
The Science of Temporary Impairment
Snakes do not possess movable eyelids; instead, their eyes are protected by a transparent, specialized scale called a spectacle or brille. As a snake prepares to shed, a layer of lymph fluid forms between the old spectacle and the new one developing underneath. This fluid accumulation causes the old spectacle to lift and detach from the underlying new layer.
This milky fluid between the two spectacle layers creates the cloudy or bluish appearance in the snake’s eyes. This cloudiness significantly reduces the snake’s visual acuity. While not entirely blind, their vision is severely impaired, often leading to a disoriented state. The old spectacle eventually detaches and comes off as part of the complete shed skin, restoring the snake’s clear vision.
Recognizing the Shed Cycle
A noticeable indicator that a snake is approaching a shed cycle is the clouding of its eyes, often called “in blue.” Beyond the eyes, the snake’s entire skin may also appear duller and less vibrant as the new skin forms beneath. The belly scales, in particular, might take on a pinkish hue as part of this preparatory phase.
Behavioral changes frequently accompany these physical signs. Snakes often become more reclusive during this period, seeking out hiding spots within their enclosure. Due to their impaired vision, they might become more irritable or defensive, and some may refuse food.
Supporting Your Snake Through Shed
Maintaining appropriate humidity levels in the enclosure is important for a successful shed. Providing a humidity box, such as a container with damp substrate like sphagnum moss, can assist the process. Regular misting can also help maintain moisture, facilitating the release of the old skin. Always ensure a source of fresh water is available for the snake to drink and soak in, which aids hydration.
Minimizing handling during the shedding cycle is advisable, as the snake’s vision is compromised, making them more stressed and defensive. After the shed, inspect the snake and the shed skin to confirm the entire skin has come off in one continuous piece. Pay close attention to the eye caps, ensuring they have also shed; retained eye caps can lead to future vision problems. If any old skin remains, especially around the eyes, a warm bath can help loosen it for gentle removal, but forceful pulling should be avoided.