Why can a blow to the front of the eye result in damage to the retina of the eye?
See http://www.aafp.org/afp/20040401/1691.html
for an explanation in medical terms. The entire eye is affected by the pressure wave resulting from the trauma of impact at the front.
Because it can detach the retina
A blow to the front of the eye can result in damage to the retina due to the impact and the subsequent pressure wave. When a force is applied to the front of the eye, it creates a shockwave that spreads throughout the eye, affecting different structures including the retina. The retina is a thin layer of tissue located at the back of the eye that is responsible for converting light into neural signals, which are then processed by the brain to create vision.
The force caused by the blow can lead to the compression and stretching of the eyeball, which can cause the retina to detach or tear. The retina is attached to the inner wall of the eye by delicate structures called the retinal pigment epithelium and the sensory layer. When these attachments are disturbed, the retina can become detached from its normal position, disrupting its function.
Damage to the retina can result in vision loss or impairment, depending on the severity and extent of the injury. It is important to seek immediate medical attention if you experience a blow to the eye or any signs of visual disturbance, as prompt evaluation and treatment can help minimize the risk of complications and optimize visual outcomes.