Classification and severe forms of ROP
- Introduction...
- 1. Learning object...
- 2. Classification ...
- 3. Location...
- 4. Severity...
- 5. Severity - 01...
- 6. Plus disease...
- 7. Aggressive Post...
- 8. Consequences of...
- 9. Key messages...
![]() |
![]() |
Introduction
DR. J. KUMUTHA
MD, DCH
Professor & Head
Department of Neonatology
Saveetha Medical College
Thandalam, Chennai
1. Learning objectives
â–º To learn about the
♦ classification of ROP
♦ severe forms of ROP
♦ consequences of ROP
2. Classification of ROP
â–º International Classification of ROP (ICROP) is used for
classifying ROP
â–º ROP is categorised based on
♦ the severity into stages (1-5)
♦ location into 3 zones (Zone 1-3)
♦ the presence of plus disease
3. Location


4. Severity

5. Severity - 01
â–º Stage 1 - Thin white line of demarcation's
â–º Stage 2 - Addition of depth and width to the demarcation line
(Ridge)
â–º Stage 3 - Presence of extra retinal fibro vascular proliferation
â–º Stage 4 - Partial retinal detachment beginning at the ridge,
not involving macula (4A) and involving macula (4B)
â–º Stage 5 - Complete retinal detachment
6. Plus disease
â–º Increased venous dilation
â–º Arteriolar tortuosity of the posterior retinal vessels
â–º If there is poor pupillary dilatation (rigid pupil), you should
suspect plus disease

7. Aggressive Posterior ROP (AP-ROP)
â–º Rapidly progressing, severe form of ROP in the smallest
and most immature infants
â–º Prominence of plus disease
â–º There is risk of early retinal detachment

8. Consequences of ROP
â–º Refractive errors
â–º Squint
â–º Unilateral or bilateral blindness
â–º Late retinal detachment (6 months-31 years)
â–º Glaucoma
9. Key messages
â–º ROP is classified based on the severity, location and extent
of the disease
â–º The presence of plus disease and APROP needs urgent
intervention in the form of laser or surgery
â–º Screening and timely intervention will reduce dire
consequences of ROP


