NEET PG-Segments - Chambers of Eye-Ophthalmology скачать в хорошем качестве

NEET PG-Segments - Chambers of Eye-Ophthalmology

To view more videos download our ophthalmology app at https://play.google.com/store/apps/de... Anterior Chamber:@0:10 Depth: → Measurement from centre of cornea to centre of pupil. →3 mm →Shallow AC – women, elderly, children [WEC] →Deep AC – young males Volume: →0.25 to 0.3 ml → Anterior chamber filled with aqueous humor → Provides nutrition to- Avascular structures-cornea, lens. Cornea Nutrition Supply:@1:47 → Glucose → completely supplied by aqueous humor. →O2 supplied by: 1.Air 2. Tear Film 3.Aqueous Humor Note: → Contact lenses block O2 supply mainly from tear film → Causes corneal ulcers → Mainly due to Pseudomonas (Emergency condition) → Avoid wearing contact lenses while sleeping Crystalline Lens:@3:23 → Lies in Patellar fossa Composition: → 65% - Water → 35% - proteins (90% crystalline proteins) Contains: → Nucleus → Cortex Capsule: • Thinnest part of capsule – posterior capsule • LEC’S (lens epithelial cells) – only present under anterior capsule Crystalline Lens →Lens suspended by Zonules/ suspensory ligaments from ciliary body → Iris lens diaphragm includes: 1.Iris 2.Ciliary body 3. Zonules & lens Posterior Chamber [PC]:@5:41 • Space between the iris and lens • Contains aqueous humor. • AC & PC connected with each other by pupil Vitreous Cavity:@6:25 • Space between posterior surface of lens & Retina • Volume → 4 ml • Contains vitreous humor (4ml – 70% of eye ball ) • Single largest structure inside the eye • Strongest attachment – vitreous base.