Red eye, also known as bloodshot eyes, is caused by the dilation of tiny blood vessels on the surface of the eye. It can be due to conditions like dust or pollen allergies, eye infections from bacteria or viruses, autoimmune disorders like rheumatoid arthritis, eye injuries from rubbing or chemicals, or underlying ocular conditions affecting the eyelids, conjunctiva, cornea, or iris. Symptoms include pain, watering, irritation, blurred vision, and discharge. Determining whether red eye is painful or painless helps identify potential causes like scleritis, glaucoma, uveitis, or conjunctivitis.

1. RED EYE
BY
SANJANA CHOUHAN.S

2. WHAT IS RED EYE ?
• “RED EYE” is a general term use to describe an eye that appears
to be red due to illness ,allergy ,infections ,injury or some other
conditions.
• Our eyes become red when the tiny blood vessels on the surface of
the eye gets enlarged and dilated (vasodilation)
• It is also know as Bloodshot eyes

4. CAUSES
1. Common causes
• Dust particle in eye
• Exposure to sun
• Eye strain
• Lack of sleep
• Swimming
2. Allergy
• Dust and pollens
• Usage of Cosmetic products
3. Infections
• Bacterial – streptococci , staphylococci
• Viral – herpes simplex , herpes zoster
• Protozoa - Acanthamoeba

5. 4.Autoimmune condition
• Sjogren’s syndrome
• Rheumatoid arthritis
5. Injury
• Excessive rubbing of eye
• Contact lens wear
• Chemical irritation
• Foreign body attack
• Uncommon radiations
6. Medications – high blood pressure, painkillers

6. OCULAR CONDITIONS
EYELID ORBIT CONJUNCTIVA CORNEA SCLERA ANTERIOR
CHAMBER
IRIS AND
CILIARY BODY
Ectropion Orbital
cellulitis
Conjunctivitis Corneal
abrasion
Scleritis Acute angle
closure
glaucoma
Iritis
Entropion Trauma Sub-conjunctival
hemorrhage
keratitis Episcleritis Hyphaema Iridocyclitis
Trichiasis Corneal ulcer

7. EYE LID
ENTROPION
TRICHIASIS

8. ORBIT
ORBITAL CELLULITIS
TRAUMA

9. CONJUNCTIVA
SUB CONJUNCTIVAL HEMORRHAGE
CONJUNCTIVITIS

10. CORNEA
MICROBIAL KERATITIS

11. SCLERA
SCLERITIS EPISCLERITIS

12. ANTERIOR CHAMBER
HYPHAEMA

13. IRIS AND CILIARY BODY

14. SUSPECTED CONDITION
ACUTE PAINFUL RED EYE ACUTE PAINLESS RED EYE
Scleritis Episcleritis
Acute angle closure glaucoma Conjunctivitis
Anterior uveitis Sub-conjunctival hemorrhage
Keratitis
Corneal abrasions or trauma
Endophthalmitis

15. SYMPTOMS
• Pain
• Watering
• Itching
• Irritation
• Gritty feeling
• Burning sensation
• Sensitive to light
• Blurred vision
• Discharge
• Swelling

16. SIGNS
1. Vesicles
2. Follicles
3. Ciliary flush
4. Irregular pupil
5. Papillae
6. Foreign body
7. Dilated conjunctival vessels
8. Discharge
9. Corneal ulcer
10. Hypopyon
11. Dentritic ulcer
12. Dilated episcleral vessels
13. chemosis
13

17. THANK YOU