A blind spot, scotoma, is an obscuration of the visual field. A specific blind spot known as the physiological blind spot, “blind point”, or punctum caecum in medical literature, is the place in the visual field that represents the absence of light-detecting photoreceptor cells on the optic disc of the retina where the optic nerve travels through the optic disc. Due to the fact that there are no cells to discover light on the optic disc, the corresponding part of the field of view is invisible. Some process in our brains inserts the blind spot based upon surrounding information and information from the other eye, so we do not normally view the blind spot.
There are numerous types of eye issues and vision disruptions, such as:
- Blurred vision (the loss of sharpness of vision and the failure to see great information)
- Blind spots or scotomas (dark “holes” in the vision where nothing can be seen)
Blind Spots and Other Vision Problems
Vision loss and blindness are the most severe vision problems.
Factors to consider
Routine eye examinations from an ophthalmologist or optometrist are important. They need to be done when a year if you are over age 65. Some experts suggest yearly eye exams beginning at an earlier age.
For how long you go in between tests is based upon the length of time you can wait prior to finding an eye problem that has no symptoms. Your service provider will suggest earlier and more regular exams if you have understood eye problems or conditions that are known to cause eye issues. These include diabetes or high blood pressure.
These crucial steps can avoid eye and vision problems:
- Wear sunglasses to safeguard your eyes
- Use safety glasses when hammering, grinding, or utilizing power tools
- If you need glasses or contact lenses, keep the prescription as much as date
- DO NOT smoke
- Limitation how much alcohol you drink
- Remain at a healthy weight
- Keep your blood pressure and cholesterol under control
- Keep your blood glucose under control if you have diabetes
- Eat foods abundant in anti-oxidants, like green leafy vegetables
Vision changes and problems can be brought on by several conditions. Some include:
- Presbyopia: trouble focusing on things that are close. This issue typically ends up being noticeable in your early to mid-40s.
- Cataracts: loudiness over the eye lens, causing poor nighttime vision, halos around lights, and sensitivity to glare. Cataracts prevail in the senior.
- Glaucoma: increased pressure in the eye, which is usually painless. Vision will be normal initially, however over time you can establish bad night vision, blind spots, and a loss of vision to either side. Some types of glaucoma can likewise take place unexpectedly, which is a medical emergency.
- Diabetic eye disease.
- Macular degeneration: loss of main vision, blurred vision (specifically while reading), distorted vision (straight lines will seem wavy), and colors that look faded. The most typical reason for blindness in individuals over age 60.
- Eye infection, swelling, or injury.
- Floaters: tiny particles drifting inside the eye, which might be a sign of retinal detachment.
- Night loss of sight.
- Retinal detachment: symptoms include floaters, triggers, or flashes of light in your vision, or an experience of a shade or drape hanging throughout part of your visual field.
- Optic neuritis: swelling of the optic nerve from infection or multiple sclerosis. You may have pain when you move your eye or touch it through the eyelid.
- Stroke or TIA.
- Brain growth.
- Bleeding into the eye.
- Temporal arteritis: swelling of an artery in the brain that supplies blood to the optic nerve.
- Migraine headaches: spots of light, halos, or zigzag patterns that appear prior to the start of the headache.
Medicines may likewise impact vision.
See your health care service provider if you have any problems with your vision.
When to Contact a Medical Professional
Seek emergency care from a company who is experienced in handling eye emergencies if:
- You experience partial or complete loss of sight in one or both eyes, even if it is just temporary.
- You experience double vision, even if it is temporary.
- You have a feeling of a shade being pulled over your eyes or a drape being drawn from the side, above, or below.
- Blind spots, halos around lights, or areas of distorted vision appear suddenly.
- You have actually unexpected blurred vision with eye pain, especially if the eye is also red. A red, painful eye with blurred vision is a medical emergency.
Get a total eye test if you have:
- Trouble seeing things on either side
- Problem seeing in the evening or when reading
- Steady loss of the sharpness of your vision
- Trouble telling colors apart
- Blurred vision when attempting to see items near or far
- Diabetes or a household history of diabetes
- Eye itching or discharge
- Vision modifications that appear associated to medication (DO NOT stop or change a medication without speaking with your doctor.)
See also: Sudden Loss of Vision
What to Expect at Your Office Visit
Your service provider will inspect your vision, eye movements, pupils, the back of your eye (called the retina), and eye pressure. A total medical examination will be done if needed.
It will be helpful to your company if you can explain your symptoms precisely. Think about the following ahead of time:
- Has the issue affected your vision?
- Exists blurring, halos around lights, flashing lights, or blind spots?
- Do colors appear faded?
- Do you have pain?
- Are you sensitive to light?
- Do you have tearing or discharge?
- Do you have dizziness, or does it seem like the space is spinning?
- Do you have double vision?
- Is the issue in one or both eyes?
- When did this begin? Did it happen unexpectedly or slowly?
- Is it continuous or does it reoccur?
- How often does it happen? For how long does it last?
- When does it take place? Night? Morning?
- Is there anything that makes it better? Even worse?
The provider will also ask you about any eye issues you have actually had in the past:
- Has this ever taken place before?
- Have you been offered eye medicines?
- Have you had eye surgery or injuries?
- Have you just recently took a trip out of the country?
- Exist brand-new things you could be allergic to, such as soaps, sprays, creams, creams, cosmetics, laundry items, curtains, sheets, carpets, paint, or animals?
The company will likewise ask about your general health and household history:
- Do you have any recognized allergic reactions?
- When did you last have a basic checkup?
- Are you taking any medications?
- Have you been detected with any medical conditions, such as diabetes or hypertension?
- What sort of eye issues do your member of the family have?
The following tests might be performed:
- Dilated eye examination
- Slit-lamp examination
- Refraction (test for glasses)
- Tonometry (eye pressure test)
Treatments depend on the cause. Surgery might be required for some conditions.