Grading in ophthalmology

How to grade everything in ophthalmology?

Grading in ophthalmology is an ever evolving concept. Some grading systems which is used commonly are as follows. 

Grading of Ptosis:

Ptosis is a drooping of the upper eyelid.
Marginal Reflex Distance MRD (Distance between Upper lid margin and corneal light reflex)

Grading of Entropion:

Lid margin is inturned
Depending on degree of in turning,dividing into three grades.

1. Grade 1: only posterior lid border is inrolled. 
2. Grade 2: inturning of intermarginal strip. 
3. Grade 3: whole lid margin including anterior border inturned

Grading of Ectropion

It is an outward rolling of lid margin.

1. Grade 1: Only punctum everted
2. Grade 2: Lid margin is everted and palpebral conjunctiva is visible.
3. Grade 3: Fornix is visible

Grading of Hyphema:

Hyphemas can be graded from grade  I-IV

• Grade 0: No visible layering, but red blood cells within the anterior chamber (microhyphema)
• Grade I: Layered blood occupying less than 1/3 of the anterior chamber 
• Grade II: Blood filling 1/3 to 1/2 of the anterior chamber 
• Grade III: Layered blood filling ½ to less than total of the anterior chamber 
• Grade IV: Total clotted blood, often referred to as blackball or 8-ball hyphema 

Anterior Chamber (AC) Cells Grading: 

AC Flares:

0  Complete absence

1+ Faint flare (barely detectable)

2+ Moderate flare (iris and lens still clear)

3+ Marked flare(iris and lens hazy)

4+ Intense flare(coagulate aqueous, no circulation, fibrin visible)

Van Herick’s AC Depth Grading:  

The peripheral anterior chamber depth (PACD) is compared to the adjacent corneal thickness (CT) and the presumed angle width is graded as follows:

Grade 4 (Wide open angle): PACD = 3 / 4 to 1 CT

Grade 3 (Mild narrow angle): PACD = ¼ to ½ CT

Grade 2 (Moderate narrow angle): PACD = ¼ CT

Grade 1 ( Extremely narrow angle): PACD < ¼ CT  

Grade 0 (closed angle): PACD = Nil

Nuclear Sclerosis Grading: 

Posterior Sub Capsular Cataract (PSCC) Grading : 

Diabetic Retinopathy Grading: 

Hypertensive Retinopathy Gradings:

 

RAPD Grading 

1+ Weak initial constriction followed by greater redilation

2+ Initial pupillary stall followed by greater redilation

3+ Immediate pupillary dilation

4+ No reaction to light

Papilledema Grading:

Vitreous Haze Grading: